Gaya APA

Ormsby, T, J. (2009). GETTING TO KNOW ArcGIS desktop: Basics of ArcView, ArcEditor, and ArcInfo (2). United States of America: ESRI Press.

Gaya MLA

Ormsby, Timothy, James. "GETTING TO KNOW ArcGIS desktop: Basics of ArcView, ArcEditor, and ArcInfo". 2 United States of America: ESRI Press, 2009. Multimedia.