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Bibliographic Details
Main Author:	Adler, Irving
Other Authors:	Adler, Ruth
Format:	Book
Language:	English
Published:	New York : John Day Co., [1967]
Series:	Adler, Irving. Reason why books.
Subjects:	Set theory > Juvenile literature.

Description
Physical Description:	48 pages : illustrations (part color) ; 22 cm.