Cita APA (7th ed.)

Chang, K. (2008). Introduction to geographic information systems (4th ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Chang, Kang-Tsung. Introduction to Geographic Information Systems. 4th ed. Boston ; New Delhi: McGraw-Hill, 2008.

Cita MLA (8th ed.)

Chang, Kang-Tsung. Introduction to Geographic Information Systems. 4th ed. McGraw-Hill, 2008.