Alaska helicopter tours sound measurements Juneau, Alaska, June 1993
By: Robin T. Harrison and Eric C. Shilling
Contributors: Shilling, Eric C.; Technology & Development Program (U.S.)
Publisher: U.S. Dept. of Agriculture, Forest Service, Technology & Development Program
Published: 1994
Place of publication: Washington D.C.?]
Language: eng
Subjects: Sound; Helicopters; Noise; Forest management; Environmental aspects; Measurement
Notes: "June 1994."

"OE11A40 Noise control in forest recreation."

"5700-Aviation Management"--Cover.

"2300-Recreation Management"--Cover.

"9457 1204-SDTDC"--Cover.

Includes bibliographical references (p. 8).