APA (7th ed.) Citation

Korte, G. B. (2001). The GIS book (5a. ed.). Onword Press.

Chicago Style (17th ed.) Citation

Korte, George B. The GIS Book. 5a. ed. Toronto: Onword Press, 2001.

MLA (9th ed.) Citation

Korte, George B. The GIS Book. 5a. ed. Onword Press, 2001.