Modern methods and materials for teaching science /

Bibliographic Details
Main Author:	Heiss, Elwood D. (Elwood David), 1899-
Other Authors:	Obourn, Ellsworth Scott, 1897-, Hoffman, Charles Wesley, 1909-
Format:	Book
Language:	English
Published:	New York : The Macmillan company, 1940.
Subjects:	Science > Study and teaching.

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