Cita APA (7th ed.)

Chang, K. (2019). Introduction to geographic information systems (Ninth edition.). McGraw-Hill Education.

Cita Chicago (17th ed.)

Chang, Kang-Tsung. Introduction to Geographic Information Systems. Ninth edition. New York: McGraw-Hill Education, 2019.

Cita MLA (9th ed.)

Chang, Kang-Tsung. Introduction to Geographic Information Systems. Ninth edition. McGraw-Hill Education, 2019.