APA (7th ed.) Citation

O'Brien,Derek. (2003). Business quiz book (NA.). Penguin Books.

Chicago Style (17th ed.) Citation

O'Brien,Derek. Business Quiz Book. NA. New Delhi: Penguin Books, 2003.

MLA (9th ed.) Citation

O'Brien,Derek. Business Quiz Book. NA. Penguin Books, 2003.

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