Chang, K. (2008). Introduction to Geographic Information Systems (4th ed.). Tata McGraw Hill Education Private Limited.
Cita Chicago (17th ed.)Chang, Kang-tsung. Introduction to Geographic Information Systems. 4th ed. New Delhi: Tata McGraw Hill Education Private Limited, 2008.
Cita MLA (9th ed.)Chang, Kang-tsung. Introduction to Geographic Information Systems. 4th ed. Tata McGraw Hill Education Private Limited, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.