Παραπομπή APA

Peter A Burrough & McDonnell Rachael A. (1998). Principles of Geographical Information systems. Oxford University Press.

Παραπομπή Chicago Style

Peter A Burrough και McDonnell Rachael A. Principles of Geographical Information Systems. New York: Oxford University Press, 1998.

Παραπομπή MLA

Peter A Burrough και McDonnell Rachael A. Principles of Geographical Information Systems. Oxford University Press, 1998.