Chang, K. (2016). Introduction to geographic information systems (Eighth edition.). McGraw-Hill Education.
Chicago-referens (17:e uppl.)Chang, Kang-Tsung. Introduction to Geographic Information Systems. Eighth edition. New York, NY: McGraw-Hill Education, 2016.
MLA-referens (9:e uppl.)Chang, Kang-Tsung. Introduction to Geographic Information Systems. Eighth edition. McGraw-Hill Education, 2016.
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