Ecology and human need /

Derr, Thomas Sieger, 1931-.

Ecology and human need / by Thomas Sieger Derr. - Philadelphia : Westminster Press, [1975] - 174 p. ; 21 cm.

Published in 1973 under title: Ecology and human liberation.

Includes bibliographical references.

0664248063

74022126 //r942


Environmental ethics.

GF80 / .D47 1975
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