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