QDF database system, version 1.0
Subtitle: reflectance of ore minerals: a search-and-match identification system for IBM and compatible microcomputers using the IMA/COM quantitative data file for ore minerals, second issue
By: by Carol N. Gerlitz, B.F. Leonard, and A.J. Criddle.
Contributors: Leonard, B. F. 1921-; Criddle, A. J.; Geological Survey (U.S.); British Museum (Natural History); International Mineralogical Association. Commission on Ore Mineralogy.
Series: Open-file report -- 89-306-A.; U.S. Geological Survey open-file report -- 89-306-A.
Publisher: U.S. Dept. of the Interior, Geological Survey; [Books and Open-File Reports Section, distributor]
Published: 1989
Place of publication: [Denver, CO]
Language: eng
Format: Microform
Number of pages: 12
Subjects: Reflectance spectroscopy -- Computer programs.; Assaying -- Computer programs.
Other titles: Reflectance of ore minerals.
Notes: "A joint report by the British Museum (Natural History) and the U.S. Geological Survey in cooperation with the International Mineralogical Association--Commission on Ore Mineralogy."

Report 89-0306A is program documentation.

Distributed to depository libraries in microfiche.

"Report 89-0306 also includes 4 dics: 89-0306B. Program documentation disk -- 89-0306C. Executable QDF Program disk (serial port plotter) -- 89-0306D. Executable QDF program disk (parallel port plotter) -- 89-0306E. QDF data file disk."

Includes bibliographical references.

Microfiche. [Denver, Colo. : U.S. Geological Survey, 1993] 1 microfiche : negative.