Pollution, resources, and the environment

Manylion Llyfryddiaeth
Awduron Eraill:	Freeman, A. Myrick (writer of introduction .), Ethoven ,Alain C. (Golygydd)
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	New York Norton c1973.
Pynciau:	Human ecology. Conservation of natural resources. Pollution > Economic aspects.