APA (7th ed.) Citation

O'Brien,Derek. (2005). Ultimate Quiz Challenge (NA.). Penguin Books.

Chicago Style (17th ed.) Citation

O'Brien,Derek. Ultimate Quiz Challenge. NA. New Delhi: Penguin Books, 2005.

MLA (9th ed.) Citation

O'Brien,Derek. Ultimate Quiz Challenge. NA. Penguin Books, 2005.

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