Thesis (Ph. D.)--University of Pennsylvania, 1931. / On cover: University of Pennsylvania. Bibliography: p. 146-159.
Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/577463605 |
Date | January 1933 |
Creators | Stephens, George Robert, |
Publisher | Philadelphia, |
Source Sets | OCLC |
Language | English |
Detected Language | English |
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