Originally presented as the author's Thesis (Ph. D.)--University of Michigan, 1928. / Includes bibliographical references and index.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/551572405 |
| Date | January 1930 |
| Creators | Rodkey, Robert G. |
| Publisher | New York : Macmillan, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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