Systems information directory.
Contributors: National Computer Center (U.S.)
Publisher: U.S. Environmental Protection Agency, Management Information and Data Systems Division, National Computer Center
Published: 1980
Place of publication: Research Triangle Park, N.C
Language: eng
Number of pages: 430
Subjects: System analysis -- Directories; Information storage and retrieval systems -- Environmental protection
Genres: Directories
Notes: "November 1980."