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＜図書＞
Population resources environment : issues in human ecology / {by} Paul R. Ehrlich {and} Anne H. Ehrlich.
(A Series of books in biology)

出版者	San Francisco : W. H. Freeman
出版年	{1970}
大きさ	383 p : illus ; 26 cm.
著者標目	Ehrlich, Paul Ralph, 1932- Ehrlich, Anne H.
件　名	Population Pollution Human ecology
一般注記	Third ed. published in 1977 under title: Ecoscience.

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