Syrocki, Boleslaus John, 1912- Finding out about ecology, [electronic resource] / by B. John Syrocki.. — Westchester, Ill., : Benefic Press, [1974]. — 47 p. : col. illus. 23 cm.



Анотація:
Defines ecology in simple text and illustrations and discusses its importance.

LCCN: 73086781

Subjects--Topical Terms:
Ecology--Juvenile literature.
Ecology.

LC Class. No.: QH541.14 / .S95

Dewey Class. No.: 301.31