Environmental microthesaurus a hierarchical list of indexing terms used by NTIS

Environmental microthesaurus a hierarchical list of indexing terms used by NTIS

Bibliographic Details
Corporate Authors: United States. National Technical Information Service, United States. Environmental Protection Agency
Format: Book
Language:English
Published: Springfield, Va. The Branch 1977.
Subjects:
Subject headings > Environmental engineering.
Subject headings > Ecology.