APA (7th ed.) Zitazioa

Edited by Onsrud , H. (1999). Geographic information research. Taylor and Francis.

Chicago Style (17th ed.) Zitazioa

Edited by Onsrud , Harlan. Geographic Information Research. London: Taylor and Francis, 1999.

MLA (9th ed.) Zitazioa

Edited by Onsrud , Harlan. Geographic Information Research. Taylor and Francis, 1999.