Clarifying the class size question / Doris W. Ryan and T. Barr Greenfield.

Bibliographic Details
Main Author: Ryan, Doris Ward, 1934-
Corporate Author: Ontario. Ministry of Education
Other Authors: Greenfield, T. Barr (Thomas Barr)
Language:English
Published: Toronto : Ontario Ministry of Education, [1976], ©1976.
Subjects:
Physical Description:viii, 229 pages : illustrations ; 30 cm
Format: Book

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