Thesis (Ph.D.) -- University of Pretoria, 1990. / Summaries in Afrikaans and English. Includes bibliographical references.
Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/250213949 |
Date | January 1990 |
Creators | De Beer, M. |
Publisher | Pretoria :[s.n.], |
Source Sets | OCLC |
Language | English |
Detected Language | English |
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