Thesis (Ph. D.)--Columbia University, 1912. / Vita. Published also as Teachers college, Columbia university, Contributions to education, no. 50. Includes bibliographical references (p. 170-171).
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/610522978 |
| Date | January 1912 |
| Creators | Henderson, Joseph Lindsey, |
| Publisher | New York city : Teachers college, Columbia University, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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