Identifer | oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:328381 |
Date | January 1989 |
Creators | Heywood, David Stephen |
Publisher | Durham University |
Source Sets | Ethos UK |
Detected Language | English |
Type | Electronic Thesis or Dissertation |
Source | http://etheses.dur.ac.uk/1538/ |
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