No abstract available. / Thesis (Ph.D.)-University of Natal, Pietermaritzburg, 1993.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:ukzn/oai:http://researchspace.ukzn.ac.za:10413/9448 |
| Date | January 1993 |
| Creators | Van der Berg, Dietloff Zigfried. |
| Contributors | Jonckheere, Wilfred F. |
| Source Sets | South African National ETD Portal |
| Language | Afrikaans |
| Detected Language | English |
| Type | Thesis |
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