The University of York Honorary Graduates - 1966-2004 (2004), University of York, York, UK, viewed 2 May 2008, "Archived copy"(PDF). Archived from the original(PDF) on 31 July 2009. Retrieved 2 May 2008.{{cite web}}: CS1 maint: archived copy as title (link)
The University of York Honorary Graduates - 1966-2004 (2004), University of York, York, UK, viewed 2 May 2008, "Archived copy"(PDF). Archived from the original(PDF) on 31 July 2009. Retrieved 2 May 2008.{{cite web}}: CS1 maint: archived copy as title (link)