Thesis (Ph. D.)--University of Pennsylvania, (1916).
Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/573748012 |
Date | January 1915 |
Creators | Willits, Joseph H. |
Publisher | Philadelphia : Dept. of Public Works, |
Source Sets | OCLC |
Language | English |
Detected Language | English |
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