Langford, David
Alphabetical Checklist
Series – Discworld
- The Unseen University Challenge: Terry Pratchett's Discworld Quizbook (London: Victor Gollancz/Vista, 1996)
- The Unseen University Challenge: Terry Pratchett's Discworld Quizbook (London: Victor Gollancz, 2005)
- The Wyrdest Link: The Second Discworld® Quizbook (London: Victor Gollancz, 2002)
- The Wyrdest Link: The Second Discworld® Quizbook (London: Victor Gollancz, 2006)