APA ציטוט

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

Chicago Edition Citation

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

ציטוט MLA

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