DeMers, M. N. (2012). Fundamentals of Geographic Information Systems (4th ed.). Wiley India (P) Ltd.
Cita Chicago (17th ed.)DeMers, Michael N. Fundamentals of Geographic Information Systems. 4th ed. New Delhi: Wiley India (P) Ltd, 2012.
Cita MLA (9th ed.)DeMers, Michael N. Fundamentals of Geographic Information Systems. 4th ed. Wiley India (P) Ltd, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.