Catalog Record: The differences in the achievement of...

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The differences in the achievement of elementary school pupils before and after the summer vacation / by Martin J. Nelson.

Main Author:	Nelson, Martin Johan, 1894-
Language(s):	English
Published:	1929.
Subjects:	Vacations. Ability. Education. Educational tests and measurements.
Note:	Cover-title.
Physical Description:	48 p. : ill. ; 23 cm.
Original Format:	Book
Locate a Print Version:	Find in a library

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