Thesis (Ph. D.)--Open University. BLDSC no. DX79459.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/496961836 |
| Date | January 1990 |
| Creators | Diffey, Keith Russell. |
| 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. |
Page generated in 0.0018 seconds