Thesis (Ph. D.)--University of Iowa, 1993. / Includes bibliographical references (leaves 124-127).
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/647452948 |
| Date | January 1993 |
| Creators | Summers, Peter M. |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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