Stivi,Tribe. (2010). University Challenge Quiz Book: Over 3,500 Challenging Questions from Britain's Most Difficult Quiz (NA.). Woodlands Books.
Chicago-viite (17. p.)Stivi,Tribe. University Challenge Quiz Book: Over 3,500 Challenging Questions from Britain's Most Difficult Quiz. NA. UK: Woodlands Books, 2010.
MLA-viite (9. p.)Stivi,Tribe. University Challenge Quiz Book: Over 3,500 Challenging Questions from Britain's Most Difficult Quiz. NA. Woodlands Books, 2010.
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