Today's mathematics : a guide to concepts and methods in elementary school mathematics /

Bibliographic Details
Main Author:	Heddens, James W., 1925-
Corporate Author:	Science Research Associates
Other Authors:	Smith, Marge L.
Format:	Book
Language:	English
Published:	Palo Alto, Calif. : Science Research Associates, Inc., [1971]
Edition:	2d ed.
Subjects:	Mathematics > Study and teaching (Elementary)

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