APA (7th ed.) Zitazioa

Chrisman, N. (1997). Exploring geographic information systems. John Wiley.

Chicago Style (17th ed.) Zitazioa

Chrisman, Nicholas. Exploring Geographic Information Systems. Nueva York: John Wiley, 1997.

MLA (9th ed.) Zitazioa

Chrisman, Nicholas. Exploring Geographic Information Systems. John Wiley, 1997.