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Lookup NU author(s): Emeritus Professor Christopher Ritson
Author(s): Ritson C
Series Editor(s): CRE
Publication type: Report
Publication status: Published
Series Title: CRE Research Reports
Year: 1993
Pages: 68
Print publication date: 01/11/1993
Source Publication Date: November 1993
Institution: Newcastle University
Place Published: Newcastle upon Tyne
URL: http://www.ncl.ac.uk/cre/publish/pdfs/rr93.4.pdf