Chang, K. (2006). Introduction to geographic information systems (3rd ed.). McGraw-Hill Higher Education.
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Dyfyniad Arddull Chicago
Chang, Kang-Tsung. Introduction to Geographic Information Systems. 3rd ed. Boston: McGraw-Hill Higher Education, 2006.
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Dyfyniad MLA
Chang, Kang-Tsung. Introduction to Geographic Information Systems. 3rd ed. McGraw-Hill Higher Education, 2006.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.