Guppies, bubbles, and vibrating objects ; a creative approach to the teaching of science to very young children /

Bibliographic Details
Main Author:	McGavack, John, 1928-
Other Authors:	LaSalle, Donald P.
Format:	Book
Language:	English
Published:	New York : John Day Co., [1969]
Subjects:	Science > Study and teaching (Primary) Learning by discovery.

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