APA (7th ed.) Citation

Thomas, C., & Ospina, M. (2004). Measuring up: The business case for GIS. ESRI Press.

Chicago Style (17th ed.) Citation

Thomas, Christopher, and Milton Ospina. Measuring Up: The Business Case for GIS. Redlands, Calif: ESRI Press, 2004.

MLA (9th ed.) Citation

Thomas, Christopher, and Milton Ospina. Measuring Up: The Business Case for GIS. ESRI Press, 2004.