REFERENCE

NBS

PUBLICATIONS

NBSIR 85-3022

NAT L INST. OF STAND & TECH

AlllDb 031647

A BIBLIOGRAPHY OF THE NBS

ELECTROMAGNETIC FIELDS DIVISION

PUBLICATIONS

Edited by

Kathryn A. Gibson

Charles K. S. Miller

National Bureau of Standards

U.S. Department of Commerce

Boulder, Colorado 80303

^ATCOVAI. PUBEAQ

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LIBSAHT ) NBSIR 85-3022

A BIBLIOGRAPHY OF THE NBS

ELECTROMAGNETIC FIELDS DIVISION

PUBLICATIONS

Edited by

Kathryn A. Gibson

Charles K. S. Miller

Electromagnetic Fields Division

National Engineering Laboratory

National Bureau of Standards

U.S. Department of Commerce

Boulder, Colorado 80303

April 1985

U.S. DEPARTMENT OF COMMERCE, Malcolm Baldrige, Secretary

NATIONAL BUREAU OF STANDARDS, Ernest Ambler, Director
V'.

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CONTENTS

Page

INTRODUCTION 1

ANTENNAS 3

ELECTROMAGNETIC INTERFERENCE 6

NOISE 10

WAVEFORM METROLOGY 11

MISCELLANEOUS 13

AUTHOR INDEX 14

i i i

A BIBLIOGRAPHY OF THE NBS ELECTROMAGNETIC FIELDS DIVISION PUBLICATIONS

Edited by

Kathryn A. Gibson and Charles K. S. Miller

This bibliography lists the publications of the personnel of the National

Bureau of Standards Electromagnetic Fields Division in the period from

January 1982 through December 1983.

Key words: antennas; electromagnetic interference; electromagnetic

metrology; microwaves; noise; non-ionizing radiation; radiation hazards;

waveform metrology.

INTRODUCTION

This bibliography updates and supplements NBSIR 80-1635 which lists the

publications of the Electromagnetic Fields Division from January 1970 through

December 1979, and NBSIR 82-1673 which lists publications from January 1980

through December 1981. The publications listed in this supplement were

published in 1982 and 1983.

The Electromagnetic Fields Division was formed during the reorganization

of NBS in April 1978. The Division develops measurement methods and standards, and provides metrological support for: antenna systems, noise measurement equipment, electromagnetic interference, electromagnetic environmental

characterization equipment especially for fields near sources or a near-field

like condition, electromagnetic emission and immunity (or susceptibility)

testing equipment, and waveform metrology. The editors have attempted to

include all work published by the staff members of the Division in the period

from January 1982 through December 1983. There are a few exceptions.

Relevant work performed by authors prior to joining this Division or work by

authors who have left this Division has been included because of its special

significance. A miscellaneous category includes general publications. A few

references are listed in more than one category where appropriate.

There are several other information sources that may be useful to the

reader who is interested in activities at NBS connected with electromagnetic

metrology. Companion bibliographies list publications of the Electromagnetic

Technology Division. Topics include metrology for: microwave and millimeter

wave circuits, laser systems, optical communication equipment, systems using

transient or pulsed electromagnetic phenomena, cryoelectronics,

superconductors and other unusual electrical engineering materials. T ^ree

bibliographies of the publications of the former Electromagnetics Division

have been published: NBSIR 73-320 (July 1972-June 1973); NBSIR 74-395 (July

1973-June 1974); NBSIR 75-818 (July 1974-June 1975). These were preceded by a series of unpublished reports (edited by H. M. Altschuler) that cover

period back to 1956. An excellent summary of the whole field of

electromagnetic metrology as it stood in 1967 was published as a special issue

of the IEEE Proceedings (volume 55, June 1967). Advances in the following

decade were described in another special issue of the same jou r na~ 'vclume , April 1978).

1
A NOTE ON ABBREVIATIONS

Most readers will be familiar with the commonly used abbreviations for

the names of the various professional journals that appear in this bibliography. There are also several publication series that are peculiar to NBS and

call for explanation. They are:

.NBSIR - NBS Interagency/Internal Report

NBS-TN - NBS Technical Note

NBS-SP - NBS Special Publication

NBS-MN - NBS Monograph

Purchase Procedures and Document Availability

NBS Technical Notes, Special Publications, and Monographs may be purchased

from the Superintendent of Documents, U.S. Government Printing Office,

Washington, DC 20402. Orders must be accompanied by postal money order,

express money order, or check made out to the Superintendent of Documents.

NBS Interagency/Internal Reports (NBSIR 1 s) may be purchased from the

National Technical Information Service, Springfield, VA 22161. Order must be

accompanied by postal money order, express money order, or check made out to

the NTIS.

Reprints of papers published in non-NBS media may be available in limited

quantities from the authors.

2
ANTENNAS

The Orbiting Standards Package: A Recal ibratabl e Satellite Instrument Assembly

for Measuring Large Earth Station Antennas

Baird, R. C. and Estin, A. J. Proc., Antenna Measurement Techniques Assoc., New Mexico State

University, Las Cruces, NM, Oct. 5-7, 1982, pp. 5-1 - 5-9

October 1982

Handbook for Broadband Isotropic Antenna System, Volume 1 - Operations Manual

Bensema, W. D. NBSIR 83-1693

July 1983

Optimized Wavelength-Sized Scalar Horns as Antenna Radiation Standards

Estin, A. J.; Stubenrauch, C. F.; Repjar, A. G.; and Newell, A. C.

IEEE Trans, on Instrumentation and Measurement

Vol . IM-31 , No. 1, pp. 53-56

March 1982

A Partial Loop Source of E & H Fields for Antenna Factor Calibration (A Loop

Cell)

Fi tzGerrel 1 , R. G.

Proc., Antenna Measurement Techniques Assoc., New Mexico State

University, Las Cruces, NM, Oct. 5-7, 1982, pp. 15-1 - 15-22

October 1982

Computations of Antenna Side-Lobe Coupling in the Near Field Using Approximate

Far-Field Data

Francis, M. H. and Yaghjian, A. D. NBSIR 82-1674

August 1982

The Characteristics of Iris-Fed Millimeter Wave Rectangular Microstrip Patch

Antennas

Greenlee, D. H.; Kanda, M.; and Chang, D. C.

NBS Tech Note 1063

October 1983

The Characteristics of Iris-Fed Millimeter Wave Rectangular Microstrip Patch

Antennas

Kanda, M.; Chang, D. C.; and Greenlee, D. H. Proc., 1982 IEEE AP/S Symp., University of New Mexico, Albuquerque,

NM, May 24-28, 1982, pp. 292-295

May 1982

The Effects of Resistive Loading on TEM Horns

Kanda, M.

IEEE Trans, on EMC

Vol. EMC-24, No. 2, pp. 245-255

May 1982

3
ANTENNAS (Cont'd)

Antenna Gain Measurements by an Extended Version of the NBS Extrapolation

Method

Repjar, A. G.; Newell, A. C.; and Baird, R. C.

IEEE Trans, on Instrumentation and Measurement

Vol . IM-32 , No. 1, pp. 88-91

March 1983

Antenna Gain Measurements by an Extended Version of the NBS Extrapolation

Method

Repjar, A. G.; Newell, A. C.; and Baird, R. C.

Digest, Conference on Precision Electromagnetic Measurements,

Boulder, CO, June 28-July 1, 1982, pp. F-7 - F-9

June 1982

Accurate Evaluation of a Millimeter Wave Compact Range Using Planar Near-Field

Scanni ng

Repjar, A. G. and Kremer, D. P. IEEE Trans, on Antennas and Propagation

Vol. AP-30 , No. 3, pp. 419-425

May 1982

International Intercomparison of Electric Field Strength at 100 MHz

Stubenrauch, C. F.; Spiess, W.; Galliano, P. G.; and Babij, T.

IEEE Trans, on Instrumentation and Measurement

Vol . IM-32, No. 1, pp. 235-237

March 1983

International Intercomparison of Electric Field Strength at 100 MHz

Stubenrauch, C. F.; Spiess, W.; Galliano, P. G.; and Babij, T.

Digest, Conference on Precision Electromagnetic Measurements,

Boulder, CO, June 28-July 1, 1982, pp. P-3 - P-4

June 1982

Precision Measurement of Antenna System Noise Using Radio Stars

Wait, D. F. IEEE Trans, on Instrumentation and Measurement

Vol. IM-32, No. 1, pp. 110-116

March 1983

Precision Measurement of Antenna System Noise Using Radio Stars

Wait, D. F. Digest, Conference on Precision Electromagnetic Measurements,

Boulder, CO, June 28-July 1, 1982, p. F-17

June 1982

Input Impedance of a Probe Antenna Exciting a TEM Cell

Wilson, P. F.; Chang, D. C.; and Ma, M. T.

NBS Tech Note 1054

April 1982

4
ANTENNAS (Cont'd)

Optical Modulator and Link for Broadband Antennas

Wyss, J. C.; Kanda, M.; Melquist, D. G.; and Ondrejka, A. R. Digest, Conference on Precision Electromagnetic Measurements,

Boulder, CO, June 28-July 1, 1982, pp. P-16 - P-17

June 1982

Approximate Formulas for the Far Field and Gain of Open-Ended Rectangular

Waveguide

Yaghjian, A. D. NBSIR 83-1689

May 1983

A Delta-Distribution Derivation of the Electric Field in the Source Region

Yaghjian, A. D. Journal of the Electromagnetics Society

Vol . 2, No. 2, pp. 161-167

April-June 1982

Efficient Computation of Antenna Coupling and Fields Within the Near-Field

Region

Yaghjian, A. D. IEEE Trans, on Antennas and Propagation

Vol. AP-30, No, 1, pp. 113-128

January 1982

5
ELECTROMAGNETIC INTERFERENCE

Measurement of Electromagnetic Radiation from Electric Rail Cars

Adams, J. W.

NBSIR 82-1669

August 1982

Planning Guidance for Future EMI Measurement Instrumentation

Arthur, M. G.; Orr, R. D.; and Reeve, G. R. NBSIR 82-1662

April 1982

Handbook for Broadband Isotropic Antenna System Volume 1 - Operations Manual

Bensema, W. D. NBSIR 83-1693

July 1983

Comparison of Open-Field, Anechoic Chamber and TEM Cell Facilities/Techniques

for Performing Electromagnetic Radiated Emissions Measurements

Crawford, M. L. Record, IEEE 1983 International Symposium on Electromagnetic Compatibility, Arlington, VA, August 23-25, 1983, pp. 413-418

August 1983

Evaluation of Shielded Enclosure for EMI/EMC Measurements Without and With RF

Anechoic Material

Crawford, M. L. Proceedings, 1983 EMC Symposium and Exhibition, Zurich, Switzerland,

March 8-10, 1983, pp. 397-402

March 1983

Improving the Repeatability of EM Susceptibility Measurements of Electronic

Components When Using TEM Cells

Crawford, M. L. SAE Technical Paper Series, 830607, International Congress and

Exposition, Detroit, MI, February 28-March 4, 1983, pp. 1-8

March 1983

Development of the NBS Isotropic Magnetic-Field Meter (MFM-10) , 300 kHz to 100

MHz

Driver, L. D. and Cruz, J. E. Proceedings, 1982 International Symposium on EMC, Santa Clara, CA,

September 8-10, 1982, pp. 460-467

September 1982

6
ELECTROMAGNETIC INTERFERENCE (Cont'd)

E-Fields Over Ground

Fi tzGerrel 1 , R. G.

Record, IEEE 1983 International Symposium on Electromagnetic Compatibility, Arlington, V A, August 23-25, 1983, pp. 6-9

August 1983

A Partial Loop Source of E & H Fields for Antenna Factor Calibration (A Loop

Cell)

FitzGerrell, R. G.

Proceedings, Antenna Measurement Techniques Association, New Mexico

State University, Las Cruces, NM, October 5-7, 1982, pp. 15-1 - 15-22

October 1982

Free Space Transmission Loss for Anechoic Chamber Performance Evaluation

FitzGerrel 1 , R. G.

IEEE Transactions on Electromagnetic Compatibility, Vol . EMC-24, No.

3, pp. 356-358

August 1982

Time Domain Sensors for Radiated Impulsive Measurements

Kanda, M. and Ries, F. X.

IEEE Transactions on Antennas and Propagation, Vol. AP-31, No. 3,

pp. 438-444

May 1983

An Electric and Magnetic Field Sensor for Simultaneous Electromagnetic

Near-Field Measurements - Theory

Kanda, M.

NBS Tech Note 1062

April 1983

An Electric and Magnetic Field Sensor Concept for Simultaneous Near-Field

Electromagnetic Components When Using TEM Cells

Kanda, M.; Ries, F. X.; Driver, L. D.; and Orr, R. D.

Proceedings 1983 Electromagnetic Compatibility Symposium and Exhibition, Zurich, Switzerland, March 8-10, 1983, pp. 263-266

March 1983

Time Domain Sensors for Radiated Impulsive Measurements

Kanda, M. and Ries, F. X.

Proceedings, IEEE 1982 International Symposium on Electromagnetic

Compatibility, Santa Clara, CA, September 8-10, 1982, pp. 296-301

September 1982

7
ELECTROMAGNETIC INTERFERENCE (Cont'd)

Design Considerations for Broadband Magnetic-Field Sensors

Kanda, M.; Ries, F. X.; Driver, L. D.; and Orr, R. D. Digest, Conference on Precision Electromagnetic Measurements,

Boulder, CO, June 28-July 1, 1982, pp. P-11 - P-13

June 1982

The Effects of Resistive Loading on TEM Horns

Kanda, M.

IEEE Transactions on EMC

Vol . EMC-24 , No. 2, pp. 245-255

May 1982

A New Method for Determining the Emission Characteristics of an Unknown

Interference Source

Koepke, G. H. and Ma, M. T.

Proceedings, 1983 Electromagnetic Compatibility Symposium and

Exhibition, Zurich, Switzerland, March 8-10, 1983, pp. 263-266

March 1983

A New Method for Determining the Emission Characteristics of an Unknown

Interference Source

Koepke, G. H. and Ma, M. T.

Proceedings, IEEE 1982 International Symposium on Electromagnetic

Compatibility, Santa Clara, CA, September 8-10, 1982, pp. 151-156

September 1982

Design Consideration of Reverberating Chambers for Electromagnetic Interference Measurements

Liu, B.-H.; Chang, D. C.; and Ma, M. T.

Record, IEEE 1983 International Symposium on Electromagnetic Compatibility, Arlington, VA, August 23-25, 1983, pp. 508-512

August 1983

Eigenmodes and the Composite Quality Factor of a Reverberating Chamber

Liu, B.-H.; Chang, D. C.; and Ma, M. T.

NBS Tech Note 1066

August 1983

Uncertainties in Extracting Radiation Parameters for an Unknown Interference

Source Based on Power and Phase Measurements

Ma, M. T. and Koepke, G. H. NBS Tech Note 1064

June 1983

8
ELECTROMAGNETIC INTERFERENCE (Cont'd)

A Method to Quantify Radiation Characteristics of an Unknown Interference

Source

Ma, M. T. and Koepke, G. H. NBS Tech Note 1059

October 1982

A Study of Distribution of Electromagnetic Fields Inside Buildings with

Apertures Excited by an External Source

Ma, M. T. and Arthur, M. G.

NBSIR 82-1659

February 1982

The EMI Measurement Challenge

Miller, C. K. S.

Proceedings, Measurement Science Conference, Palo Alto, CA, January

20-21, 1983, pp. 189-197

May 1983

International Intercomparison of Electric Field Strength at 100 MHz

Stubenrauch, C. F.; Spiess, W.; Galliano, P. G.; and Babij, T.

IEEE Trans, on Instrumentation and Measurement

Vol . IM-32 , No. 1, pp. 235-237

March 1983

Radiated EMI Instrumentation Errors

Taggart, H. E. EMC Technology Magazine

Volume 1, No. 4, pp. 26-35

October 1982

Theoretical and Experimental Analysis of Coupling Characteristics of Dual TEM

Cel 1 s Wilson, P. F.; Chang, D. C.; Ma, M. T.; and Crawford, M. L. Record, IEEE 1983 International Symposium on Electromagnetic Compatibility, Arlington, VA, August 23-25, 1983, pp. 513-517

August 1983

Input Impedance of a Probe Antenna Exciting a TEM Cell

Wilson, P. F.; Chang, D. C.; and Ma, M. T.

NBS Tech Note 1054

April 1982

Optical Modulator and Link for Broadband Antennas

Wyss, J. C.; Kanda, M.; Melquist, D. G.; and Ondrejka, A. R. Diaest, Conference on Precision Electromagnetic Measurements,

Boulder, CO, June 28-July 1, 1982, pp. P-16 - P-17

June 1982

9
NOISE

Design and Error Analysis for the WR10 Thermal Noise Standard

Daywitt, W. C.

NBS Tech Note 1071

December 1983

Preliminary Examination of 20 GHz G/T Measurements of Earth Terminals

Wait, D. F. and Daywitt, W. C.

NBSIR 83-1686

March 1983

Precision Measurement of Antenna System Noise Using Radio Stars

Wait, D. F. IEEE Transactions on Instrumentation and Measurement

Vol . IM-32 , No. 1, pp. 110-116

March 1983

Earth Terminal Measurement System Operations Manual (Revised)

Wait, D. F. NBSIR 83-1679

January 1983

Precision Measurement of Antenna System Noise Using Radio Stars

Wait, D. F. Digest, Conference on Precision Electromagnetic Measurements,

Boulder, CO, June 28-July 1, 1982, pp. F- 17

June 1982

10
WAVEFORM METROLOGY

Reference Flat Pulse Generator

Andrews, J. R.; Bell, B. A.; and Baldwin, E. E. NBS Tech Note 1067

October 1983

Reference Waveform Flat Pulse Generator

Andrews, J. R.; Bell, B. A.; Nahman, N. S.; and Baldwin, E. E. IEEE Transactions on Instrumentation and Measurement

Vol . IM-32 , No. 1, pp. 27-32

March 1983

Status of Reference Waveform Standards Development at NBS

Andrews, J. R.; Nahman, N. S.; and Bell, B. A.

NBS Special Publication 634, Proceedings of the Seminar on Waveform

Recorder Measurement Needs and Techniques for Evaluation/Calibration, Boulder, CO, October 15, 1981, pp. 69-88

June 1982

The Measurement and Deconvolution of Time Jitter in Equivalent-Time Waveform

Sampl ers Gans, W. L. IEEE Transactions on Instrumentation and Measurement

Vol. IM-32, No. 1, pp. 126-133

March 1983

Photoconductive Switches Used for Waveform Generation at the National Bureau

of Standards

Lawton, R. A.

Proceedings, Picosecond Optoelectronics Conference, SPIE - The

International Society for Optical Engineering, San Diego, CA, August

24-26, 1983

Vol. 439, pp. 88-94

August 1983

Performance Standards for Waveform Recorders

Lawton, R. A.

IEEE Transactions on Nuclear Science

Vol. NS-30 , No. 1, pp. 263-266

February 1983

Precision Picosecond-Microsecond Electromagnetic Waveform Measurement at NBS

Lawton, R. A.

NBS Special Publication 628

pp. 392-407

June 1982

11
WAVEFORM METROLOGY (Cont'd)

Proceedings of the Seminar on Waveform Recorder Measurement Needs and Techniques for Evaluation/Calibration

Lawton, R. A. (Editor)

NBS Special Publication 634, Proceedings of the Seminar on Waveform

Recorder Measurement Needs and Techniques for Evaluation/Calibration, Boulder, CO, October 15, 1981,

June 1982

Picosecond Domain Waveform Measurements; Status and Future Directions

Nahman, N. S.

IEEE Transactions on Instrumentation and Measurement

Vol . IM-32, No. 1, pp. 117-124

March 1983

Some Generic Waveform Recorder Problems

Nahman, N. S.

NBS Special Publication 634, Proceedings of the Seminar on Waveform

Recorder Measurement Needs and Techniques for Evaluation/Calibration, Boulder, CO, October 15, 1981, pp. 1-5

June 1982

12
MISCELLANEOUS

Electromagnetic Modeling of Oil Shale Retorts for Remote Sensing Purposes

Chew, H. IEEE Transactions on Geoscience and Remote Sensing

Vol. GE-20 , No. 4, pp. 510-517

October 1982

Bibliography of the Electromagnetic Fields Division Publications

Gibson, K. A. and Miller, C. K. S.

NBSIR 82-1673

August 1982

Book Review - Leaky Feeders and Subsurface Radio Communications

Hill, D. A.

IEEE Antennas and Propagation Society Newsletter

Vol. 25, No. 3, pp. 23-24

June 1983

HF Ground Wave Propagation over Forested and Built-up Terrain

Hill, D. A.

NTIA Report 82-114

December 1982

Ground Wave Propagation over a Mixed Path with an Elevation Change

Hill, D. A. and Wait, J. R. IEEE Transactions on Antennas and Propagation

Vol. AP-30 , No. 1, pp. 139-141

January 1982

Dielectric Measurements of Oil Shale as Functions of Temperature and Frequency

Jesch, R. L. NBSIR 83-1683

January 1983

Improved Coal Interface Detector

Roe, K. C. and Wittmann, R. C.

NBSIR 82-1663

May 1982

Acoustical Interferometer Wader AIW Final Report of Advanced Development Test

and Evaluation

Stoltenberg, R. E. and Wittmann, R. C.

NBSIR 82-1671 (restricted)

June 1982

13
AUTHOR INDEX

Adams, J. W. 6

Andrews, J. R. 11

Arthur, M. G. 6, 9

Babij, T. 4, 9

Baird, R. C. 3, 4

Baldwin, E. E. 11

Bell, B. A. 11

Bensema, W. D. 3, 6

Chang, D. C. 3, 4, 8, 9

Chew, H. 13

Crawford, M. L. 6, 9

Cruz, J. E. 6

Daywitt, W. C. 10

Driver, L. D. 6, 7, 8

Estin, A. J. 3

FitzGerrell, R. G. 3, 7

Francis, M. H. 3

Galliano, P. G. 4, 9

Gans, W. L. 11

Gibson, K. A. 13

Greenlee, D. H. 3

Hill, D. A. 13

Jesch, R. L. 13

Kanda, M. 3, 5, 7, 8, 9

Koepke, G. H. 8, 9

Kremer, D. P. 4

14
AUTHOR INDEX (Cont'd)

Lawton, R. A. 11 , 12

Liu, B.-H. 8

Ma, M. T. 4, 8, 9

Melquist, D. G. 5, 9

Miller, C. K. S. 9, 13

Nahman, N. S. 11 , 12

Newel 1 , A. C. 3, 4

Ondrejka, A. R. 5, 9

Orr, R. D. 6, '-j 00

Reeve, G. R. 6

Repjar, A. G. 3, 4

Ries, F. X. 7, 8

Roe, K. C. 13

Spiess, W. 4, 9

Stoltenberg, R. E. 13

Stubenrauch, C. F. 3, 4, 9

Taggart, H. E. 9

Wait, D. F. 4, 10

Wilson, P. F. 4, 9

Wittmann, R. C. 13

Wyss, J. C. 5, 9

Yaghjian, A. D. 3, 5

15
NBS-114A (REV. 2-80) U.S. DEPT. OF COMM. BIBLIOGRAPHIC DATA

1. PUBLICATION OR

REPORT NO.

2. Performing Organ. Report No.

SHEET (See instructions) NBSIR 85-3022

3. Publication Date

April 1985

4. TITLE AND SUBTITLE

A Bibliography of the NBS Electromagnetic Fields Division Publications

5. AUTHOR(S)

Kathryn A. Gibson and Charles K. S. Miller (editors)

6. PERFORMING ORGANIZATION (If joint or other than NBS, see in struction s) NATIONAL BUREAU OF STANDARDS

DEPARTMENT OF COMMERCE

WASHINGTON, D.C. 20234

7. Contract/Grant No.

8. Type of Report & Period Covered

9. SPONSORING ORGANIZATION NAME AND COMPLETE ADDRESS (Street. City. State, ZIP)

10. SUPPLEMENTARY NOTES

| | Document describes a computer program; SF-185, FIPS Software Summary, is attached.

11. ABSTRACT (A 200-word or less factual summary of most significant information. If document includes a significant

bi bliography or literature survey, mention it here)

This bibliography lists the publications of the personnel of the NBS Electromagnetic

Fields Division in the period from January 1982 through December 1983.

12. KEY WORDS (Six to twelve entries; alphabetical order; capitalize only proper names; and separate key words by semicolon s) antennas; electromagnetic interference; electromagnetic metrology; microwaves;

noise; non-ionizing radiation; radiation hazards; waveform metrology.

13. AVAILABILITY

1 y | Unl imited

| | For Official Distribution. Do Not Release to NTIS

H Order From Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402.

[jjj] Order From National Technical Information Service (NTIS), Springfield, VA. 22161

14. NO. OF

PRINTED PAGES

20

15. Price

* U.S. GOVERNMENT PRINTING OFFICE: 1985-578-959/25205 REGION NO. 8