Citazione Stile APA (7a Edizione)
O'Brien, D. (2004). Gk with Derek the ultimate general knowledge and quiz compendium: Literature and mythology. Penguin Books.
Citazione stile Chigago Style (17a edizione)
O'Brien, Derek. Gk with Derek the Ultimate General Knowledge and Quiz Compendium: Literature and Mythology. New Delhi: Penguin Books, 2004.
Citatione MLA (9a ed.)
O'Brien, Derek. Gk with Derek the Ultimate General Knowledge and Quiz Compendium: Literature and Mythology. Penguin Books, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.