Clarke, K. C. (2003). Getting started with geographic information systems (4th ed.). Pearson Education.
Chicago Style aipamenaClarke, Keith C. Getting Started with Geographic Information Systems. 4th ed. Upper Saddle River, N.J: Pearson Education, 2003.
MLA aipamenaClarke, Keith C. Getting Started with Geographic Information Systems. 4th ed. Pearson Education, 2003.
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