Thesis (Ph. D.)--University of Pennsylvania, 1931. / "References" at end of each chapter.
Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/577864581 |
Date | January 1931 |
Creators | Wong, Yun Yuan. |
Publisher | Philadelphia, |
Source Sets | OCLC |
Language | English |
Detected Language | English |
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