David, S. (2002). The Penguin India 2003 quizbook.
Cita Chicago (17th ed.)David, Stanley. The Penguin India 2003 Quizbook. New Delhi, 2002.
Cita MLA (9th ed.)David, Stanley. The Penguin India 2003 Quizbook. 2002.
Atenció: Aquestes cites poden no estar 100% correctes.