World resources 1988-89 a report

Manylion Llyfryddiaeth
Awduron Corfforaethol:	World Resources Institute, International Institute for Environment and Development, United Nations Environment Programme
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	New York Basic Books c1988.
Pynciau:	Natural resources. Environmental policy. Economic policy > Environmental aspects.