Environmental conservation.
Dasmann, Raymond Fredric, 1919-
Environmental conservation. - 4th edition - New York, Wiley [1959]reprinted 1976 - 307 p. illus. 24 cm.
Includes bibliography.
0471196029
Conservation of natural resources.
Ecology.
Human ecology.
Conservation of natural resources--United States.
Ecology--United States.
Human ecology--United States.
333.9516 / DAE 1976
Environmental conservation. - 4th edition - New York, Wiley [1959]reprinted 1976 - 307 p. illus. 24 cm.
Includes bibliography.
0471196029
Conservation of natural resources.
Ecology.
Human ecology.
Conservation of natural resources--United States.
Ecology--United States.
Human ecology--United States.
333.9516 / DAE 1976