APA (7th ed.) Citation
Bernhardsen, T. (2002). Geographic information systems: An introduction (3rd ed.). Wiley.
Chicago Style (17th ed.) Citation
Bernhardsen, Tor. Geographic Information Systems: An Introduction. 3rd ed. New York, NY: Wiley, 2002.
MLA (9th ed.) Citation
Bernhardsen, Tor. Geographic Information Systems: An Introduction. 3rd ed. Wiley, 2002.
Warning: These citations may not always be 100% accurate.