DeMers, M. N. (2002). Fundamentals of Geographic Information Systems (2nd ed.). John Wiley & Sons, Inc.
Cita Chicago (17th ed.)DeMers, Michael N. Fundamentals of Geographic Information Systems. 2nd ed. New York: John Wiley & Sons, Inc, 2002.
Cita MLA (9th ed.)DeMers, Michael N. Fundamentals of Geographic Information Systems. 2nd ed. John Wiley & Sons, Inc, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.