The environmental challenge,

Johnson, Willis H. 1902-1994.

The environmental challenge, edited by Willis H. Johnson [and] William C. Steere. - New York, Holt, Rinehart and Winston [1974] - viii, 357 p. illus. 23 cm.

Includes bibliographies.

0030841852

73003947


Ecology.
Environmental protection.

QH541 / .J65

301.31