Thesis (Ph. D.)--University of Pennsylvania. / A study of one hundred families selected from the records of the Associated charities of Allentown, Pa.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/576142689 |
| Date | January 1923 |
| Creators | Holben, Ralph, Penrose, |
| Publisher | Philadelphia, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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