Cita APA (7a ed.)
Bernhardsen, T. (2002). Geographic information systems: An introduction (3rd ed.). Wiley.
Cita Chicago Style (17a ed.)
Bernhardsen, Tor. Geographic Information Systems: An Introduction. 3rd ed. New York, NY: Wiley, 2002.
Cita MLA (9a ed.)
Bernhardsen, Tor. Geographic Information Systems: An Introduction. 3rd ed. Wiley, 2002.
Precaución: Estas citas no son 100% exactas.