David, S. (2002). Penguin India 2003 Quiz Books (NA.). Penguin books.
芝加哥风格引文David, Stanley. Penguin India 2003 Quiz Books. NA. London: Penguin books, 2002.
MLA引文David, Stanley. Penguin India 2003 Quiz Books. NA. Penguin books, 2002.
警告：这些引文格式不一定是100％准确.