APA (7th ed.) Citation

Clark, A. N. (1998). The Penguin dictionary of geography (2nd ed., New ed.). Penguin Books.

Chicago Style (17th ed.) Citation

Clark, Audrey N. The Penguin Dictionary of Geography. 2nd ed., New ed. London, England ; New York, N.Y., USA: Penguin Books, 1998.

MLA (9th ed.) Citation

Clark, Audrey N. The Penguin Dictionary of Geography. 2nd ed., New ed. Penguin Books, 1998.