Environmental conservation

Environmental conservation

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Manylion Llyfryddiaeth
Prif Awdur: Dasmann, Raymond Fredric 1919-
Fformat: Llyfr
Iaith:English
Cyhoeddwyd: New York Wiley [1972]
Rhifyn:3d ed.
Pynciau:
Conservation of natural resources.
Ecology.
Human ecology.
Conservation of natural resources > United States.
Ecology > United States.
Human ecology > United States.
Mynediad Ar-lein:Table of contents only