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A study of the sales of individual items in four types of retail drug stores ...

Thesis (Ph. D.)--University of Pennsylvania, 1930.

Identiferoai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/572987493
Date January 1929
CreatorsOlsen, Paul C.
PublisherPhiladelphia,
Source SetsOCLC
LanguageEnglish
Detected LanguageEnglish

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