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Recreation the basis of association between parents and teachers,

By Perry, Clarence Arthur,.
New York, Dept. of Child Hygiene of the Russell Sage Foundation 1911 .
13 p. , An address delivered February 10, 1911, before the Principals' Association of Graded Schools, of Washington, D. C. 23 cm..

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Evening recreation centers,

By Perry, Clarence Arthur,.
New York city, Dept. of child hygiene of the Russell Sage foundation, 1910 .
32 p. ; , "This pamphlet is a reprint of chapter VIII of 'The wider use of the school plant,' by Clarence Arthur Perry": p. 3. | "References" : 32. 23 cm..

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