APA (7th ed.) Citation

Davis, B. E. (2001). GIS: A visual approach (2nd ed.). Onword Press.

Chicago Style (17th ed.) Citation

Davis, Bruce Ellsworth. GIS: A Visual Approach. 2nd ed. Australia: Onword Press, 2001.

MLA (9th ed.) Citation

Davis, Bruce Ellsworth. GIS: A Visual Approach. 2nd ed. Onword Press, 2001.

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