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Ratio of training costs to service rendered by graduates of Pennsylvania state teachers colleges

Thesis (Ph. D.)--University of Pennsylvania, 1938. / Bibliography: p. [141]-143.

Identiferoai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/614683626
Date January 1939
CreatorsHopkins, Wilfred Cartwright,
PublisherPhiladelphia,
Source SetsOCLC
LanguageEnglish
Detected LanguageEnglish

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