Cita APA (7th ed.)
Allen, D. W., & Coffey, J. M. (2011). GIS tutorial 3: Advanced workbook. ESRI Press.
Cita Chicago (17th ed.)
Allen, David W., i Jeffery M. Coffey. GIS Tutorial 3: Advanced Workbook. Redlands, CA: ESRI Press, 2011.
Cita MLA (9th ed.)
Allen, David W., i Jeffery M. Coffey. GIS Tutorial 3: Advanced Workbook. ESRI Press, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.