APA (7th ed.) Citation

James, P. E., & Martin, G. J. (1981). All possible worlds: A history of geographical ideas (2nd ed.). Wiley.

Chicago Style (17th ed.) Citation

James, Preston E., and Geoffrey J. Martin. All Possible Worlds: A History of Geographical Ideas. 2nd ed. New York: Wiley, 1981.

MLA (9th ed.) Citation

James, Preston E., and Geoffrey J. Martin. All Possible Worlds: A History of Geographical Ideas. 2nd ed. Wiley, 1981.