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Only one Earth :

Ward, Barbara, 1914-1981

Only one Earth : the care and maintenance of a small planet/ Barbara Ward, Rene Dubos. - England, Penguin, 1972. - 304 p. : illus. ; 19 cm.

Includes index (300 - 304 p.)

ISBN: 0140216014

Subjects--Topical Terms:
Human ecology
Ecology
Environmental health

LC Class. No.: GF41

Dewey Class. No.: 301.31