Παραπομπή APA

Burrough, P. A., & Mc Donnell, R. A. (1998). Principles of geographical information systems. Oxford University Press.

Παραπομπή Chicago Style

Burrough, Peter A., και Rachael A. Mc Donnell. Principles of Geographical Information Systems. New york: Oxford University Press, 1998.

Παραπομπή MLA

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