Cita APA

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

Chicago Edition Citation

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

Cita MLA

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