| Identifer | oai:union.ndltd.org:uiowa.edu/oai:ir.uiowa.edu:etd-7510 |
| Date | 01 December 1942 |
| Creators | Haefner, John Henry |
| Contributors | Pelzer, Louis, 1879-1946 |
| Publisher | University of Iowa |
| Source Sets | University of Iowa |
| Language | English |
| Detected Language | English |
| Type | dissertation |
| Format | application/pdf |
| Source | Theses and Dissertations |
| Rights | No known copyright restrictions. |
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