UNEP, two decades of achievement and challenge.
Publisher: United Nations Environment Programme
Published: 1992
Place of publication: [Nairobi]
Language: eng
Number of pages: 52
Subjects: United Nations Environment Programme -- History.
Other titles: 20 years, two decades of achievement and challenge.; Twenty years, two decades of achievement and challenge.
Notes: 20 years, two decades of achievement and challenge.
"October 1992"--P. 5.