Food chains and ecosystems ; ecology for young experimenters /

Experiments demonstrating ecological relationships, using soil, water, and living plants and animals.

Bibliographic Details
Main Author:	Schwartz, George I.
Other Authors:	Schwartz, Bernice S.
Format:	Book
Language:	English
Published:	Garden City, N.Y. : Doubleday, 1974.
Edition:	[1st ed.].
Subjects:	Ecology > Experiments > Juvenile literature.

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