Thesis (Ph. D.)--Columbia University, 1916. / Vita.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/262474786 |
| Date | January 1916 |
| Creators | Hibbs, Henry H. |
| Publisher | New York : Dept. of child-helping, Russell Sage Foundation, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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