APA (7th ed.) Citation

DeMERS, M. N. (1997). Fundamentals of geographic information systems. John Wiley and Sons.

Chicago Style (17th ed.) Citation

DeMERS, Michael N. Fundamentals of Geographic Information Systems. New York: John Wiley and Sons, 1997.

MLA (9th ed.) Citation

DeMERS, Michael N. Fundamentals of Geographic Information Systems. John Wiley and Sons, 1997.