Sears, Paul B. 1891-1990. The living landscape / Paul B. Sears - New York: Basic Books, c1966. - 199 p.: 22 cm. Includes index English LCCN: 66023379 Subjects--Topical Terms: EcologyConservation of natural resources. LC Class. No.: QH541 / .S37 1966 Dewey Class. No.: 574.5/SEL