Thesis (Ph. D.)--Open University. BLDSC no. DX92974. / 2 volumes.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/399699241 |
| Date | January 1990 |
| Creators | Park, Trevor. |
| Publisher | n.p., |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
| Source | Online version via the British Library Ethos service. Registration required on first visit. |
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