APA-viite (7. p.)
O'Brien, D. (2004). Gk with Derek the ultimate general knowledge and quiz compendium: Literature and mythology. Penguin Books.
Chicago-viite (17. p.)
O'Brien, Derek. Gk with Derek the Ultimate General Knowledge and Quiz Compendium: Literature and Mythology. New Delhi: Penguin Books, 2004.
MLA-viite (9. p.)
O'Brien, Derek. Gk with Derek the Ultimate General Knowledge and Quiz Compendium: Literature and Mythology. Penguin Books, 2004.
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