Presented as thesis (Ph. D.)--University of Wisconsin--Madison, 1930. / Reprinted from Proceedings of the National Academy of Sciences, vol. 14, no. 6 (June 1928). Includes bibliographical references.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/628178995 |
| Date | January 1928 |
| Creators | Davis, Myrl Nelson. |
| Publisher | [Washington, D.C.], |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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