Thesis--University of Pittsburgh. / Vita. Includes bibliographical references (leaves 52-56).
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/646526427 |
| Date | January 1973 |
| Creators | Dietz, Margaret R., |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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