Environmental microthesaurus a hierarchical list of indexing terms used by NTIS

Environmental microthesaurus a hierarchical list of indexing terms used by NTIS

Sonraí bibleagrafaíochta
Údair chorparáideacha: United States. National Technical Information Service, United States. Environmental Protection Agency
Formáid: LEABHAR
Teanga:English
Foilsithe / Cruthaithe: Springfield, Va. The Branch 1977.
Ábhair:
Subject headings > Environmental engineering.
Subject headings > Ecology.