Thesis (Ph. D.)--Pennsylvania State University, 1968. / Includes bibliographical references.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/183595905 |
| Date | January 1968 |
| Creators | Andersen, David A. |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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