Cita APA (7th ed.)

DeMers, M. N. (2009). Fundamentals of geographic information systems (Forth edition.). Wiley.

Cita Chicago (17th ed.)

DeMers, Michael N. Fundamentals of Geographic Information Systems. Forth edition. Hoboken, NJ ; India: Wiley, 2009.

Cita MLA (8th ed.)

DeMers, Michael N. Fundamentals of Geographic Information Systems. Forth edition. Wiley, 2009.