NTIS subject classification (past and present)
By: National Technical Information Service, U.S. Department of Commerce
Contributors: United States. National Technical Information Service
Publisher: The Service
Published: 1982
Place of publication: [Springfield, VA]
Language: eng
Number of pages: 92
Subjects: Classification of sciences; Subject headings
Other titles: N.T.I.S. subject classification (past and present)
Notes: Cover title

"An NTIS data base reference aid."

"Supersedes NTIS/SR-77/02 and NTIS/SR-75/01"--Rept. doc. p

"January 1978."

Includes index

NTIS: PB-270 575