Clarke, K. C. (2003). Getting started with geographic information systems (4th ed.). Pearson Education.
Chicago Style (17th ed.) CitationClarke, Keith C. Getting Started with Geographic Information Systems. 4th ed. Upper Saddle River, N.J: Pearson Education, 2003.
ציטוט MLAClarke, Keith C. Getting Started with Geographic Information Systems. 4th ed. Pearson Education, 2003.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.