Thesis (Ph. D.)--University of Iowa, 1923. / "Reprint from Annual reports for 1923 and 1924, Iowa Geological survey, vol. 31 ... February, 1927." Bibliography: p. 339-349.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/594715092 |
| Date | January 1900 |
| Creators | Walter, Otto Theodore. |
| Publisher | [Des Moines, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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