APA aipamena

Demers, M. N. (2000). Fundamentals of Geographic Information Systems (2.).

Chicago Style aipamena

Demers, Michael N. Fundamentals of Geographic Information Systems. 2. NewYork, JhonWiley & Sons, 2000.

MLA aipamena

Demers, Michael N. Fundamentals of Geographic Information Systems. 2. 2000.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.