Chang, K. (2004). Introduction to geographic information systems (2nd ed.). McGraw-Hill Higher Education.
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Dyfyniad Arddull Chicago
Chang, Kang-Tsung. Introduction to Geographic Information Systems. 2nd ed. Boston: McGraw-Hill Higher Education, 2004.
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Dyfyniad MLA
Chang, Kang-Tsung. Introduction to Geographic Information Systems. 2nd ed. McGraw-Hill Higher Education, 2004.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.