| Identifer | oai:union.ndltd.org:uiowa.edu/oai:ir.uiowa.edu:etd-3427 |
| Date | 01 January 1960 |
| Creators | Ludwig, George H. |
| Publisher | University of Iowa |
| Source Sets | University of Iowa |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | Theses and Dissertations |
| Rights | Copyright © 1960 George H. Ludwig. Posted with permission of the author. |
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