Biological conservation /
Ehrenfeld, David W.
Biological conservation / by David W. Ehrenfeld - New York : Holt, Rinehart and Winston, [1970] - xi, 226 p. : illus. (part col.), maps. ; 24 cm.
Published in 1972 under title: Conserving life on earth
Includes bibliographies
0030800498
Nature conservation
Wildlife conservation
Pollution
Biological conservation / by David W. Ehrenfeld - New York : Holt, Rinehart and Winston, [1970] - xi, 226 p. : illus. (part col.), maps. ; 24 cm.
Published in 1972 under title: Conserving life on earth
Includes bibliographies
0030800498
Nature conservation
Wildlife conservation
Pollution