APA (7th ed.) Citation

Korte, G. (1997). The GIS book (4th ed., updated and expanded.). Onword Press.

Chicago Style (17th ed.) Citation

Korte, George. The GIS Book. 4th ed., updated and expanded. Santa Fe, NM: Onword Press, 1997.

MLA (8th ed.) Citation

Korte, George. The GIS Book. 4th ed., updated and expanded. Onword Press, 1997.

Warning: These citations may not always be 100% accurate.