State of the environment the state of the world environment.

State of the environment the state of the world environment.

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書目詳細資料
企業作者: United Nations Environmental Program
格式: 圖書
語言:English
出版: Nairobi, Kenya UNEP c1986.
叢編:UNEP/GC 14/5-
主題:
Environmental protection > Congresses.
Environmental policy > Congresses.
Health > Environmental aspects.