APA (7th ed.) Citation

DeMers, M. N. (2009). Fundamentals of geographic information systems (4th ed.). Wiley.

Chicago Style (17th ed.) Citation

DeMers, Michael N. Fundamentals of Geographic Information Systems. 4th ed. Hoboken, N.J: Wiley, 2009.

MLA (9th ed.) Citation

DeMers, Michael N. Fundamentals of Geographic Information Systems. 4th ed. Wiley, 2009.