APA aipamena

Burrough, P. A., & McDonnell, R. A. (2006). Principles of geographical systems (Primera edición.). Oxford University Press.

Chicago Style aipamena

Burrough, Peter A., and Rachael A. McDonnell. Principles of Geographical Systems. Primera edición. New York: Oxford University Press, 2006.

MLA aipamena

Burrough, Peter A., and Rachael A. McDonnell. Principles of Geographical Systems. Primera edición. Oxford University Press, 2006.