Environmental problems principles, readings, and comments

Environmental problems principles, readings, and comments

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Manylion Llyfryddiaeth
Prif Awdur: Masons, Williams H.
Awduron Eraill: Folkerts, George W.
Fformat: Llyfr
Iaith:English
Cyhoeddwyd: Dubuque, IA Wm.C.Brown c1979.
Rhifyn:2nd ed.
Pynciau:
Human ecology > Addresses, essays, lectures.