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Preventing failure in the primary grades.

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Bibliographic Details
Main Author: Engelmann, Siegfried
Format: Book
Language:English
Published: New York : Simon and Schuster, [1969]
Subjects:
Education, Primary.
Description
Physical Description:396 pages : illustrations ; 24 cm.
Bibliography:Bibliographical references included in "Notes" (page 396).
ISBN:0671203681