APA Edition Citation

Derek O'Brien. (2008). Derek's Picks the best quizzes of Derek O'Brien. Penguin Books.

Chicago Edition Citation

Derek O'Brien. Derek's Picks the Best Quizzes of Derek O'Brien. New Delhi: Penguin Books, 2008.

MLA Edition Citation

Derek O'Brien. Derek's Picks the Best Quizzes of Derek O'Brien. Penguin Books, 2008.

Warning: These citations may not always be 100% accurate.