Thesis supervisor: R.W. Field. Includes bibliographic references (59-62).
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/613642792 |
| Date | January 2009 |
| Creators | Bedford, Ronald L.. Field, R. William. |
| Publisher | [Iowa City, Iowa] : University of Iowa, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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