OBrien, D. (2005). The Penguin India reference yearbook -2005. Penguin Books India.
Chicago Style (17th ed.) CitationOBrien, Derek. The Penguin India Reference Yearbook -2005. New delhi: Penguin Books India, 2005.
MLA引文OBrien, Derek. The Penguin India Reference Yearbook -2005. Penguin Books India, 2005.
警告:這些引文格式不一定是100%准確.