An index number for state school systems /

Bibliographic Details
Main Author:	Ayres, Leonard Porter, 1879-1946
Format:	Book
Language:	English
Published:	New York city : Department of education, Russell Sage foundation, [1920]
Series:	[Russell Sage foundation, New York. Dept. of education. Publications] E141
Subjects:	Public schools > United States. Education > United States > Statistics.

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