APA (7th ed.) Citation

Bernhardsen, T. (2002). Geographic information systems: An introduction (Third edition.). John Wiley & Sons.

Chicago Style (17th ed.) Citation

Bernhardsen, Tor. Geographic Information Systems: An Introduction. Third edition. New York, NY: John Wiley & Sons, 2002.

MLA (9th ed.) Citation

Bernhardsen, Tor. Geographic Information Systems: An Introduction. Third edition. John Wiley & Sons, 2002.

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