Thesaurus of environmental terms.
Contributors: United Nations Environment Programme.; International Environmental Information System (United Nations Environment Programme)
Edition: 3rd ed.
Publisher: United Nations Environment Programme
Published: 1990
Place of publication: Nairobi
Language: eng
Number of pages: 190
Subjects: Subject headings -- Environmental sciences.
Notes: "December 1990."
"This publication was edited by INFOTERRA ..."--T.p. verso.