Nickelsburg, Janet.

Ecology; habitats, niches, and food chains. Helen Hale, editorial consultant. - [1st ed.] - Philadelphia, Lippincott [1969] - 128 p. illus. 21 cm. - Introducing modern science .

Bibliography: p. [124]-125.

Introduces the principles of ecology by describing the characteristics of various environments and the roles of the living organisms inhabiting them.

LCCN: 69012000 /AC

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

LC Class. No.: QH541.14 / .N5

Dewey Class. No.: 574.5