| Identifer | oai:union.ndltd.org:uiowa.edu/oai:ir.uiowa.edu:etd-6246 |
| Date | 01 January 1911 |
| Creators | Ravlin, John H. |
| Publisher | University of Iowa |
| Source Sets | University of Iowa |
| Language | English |
| Detected Language | English |
| Type | thesis |
| Source | Theses and Dissertations |
| Rights | Material in the public domain. No restrictions on use., https://creativecommons.org/publicdomain/mark/1.0/ |
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