Environmental perspective to the year 2000 and beyond.

Manylion Llyfryddiaeth
Awdur Corfforaethol:	United Nations Environment Programme
Fformat:	Llyfr
Iaith:	Saesneg
Cyhoeddwyd:	Nairobi, Kenya United Nations Environment Programme c1988.
Pynciau:	Ecology. Economic development > Environmental aspects.