Gaya APA

Davis, D, E., Lingga, H, D. (2003). GIS for everyone: exploring your neighborhood and your world with a geographic information system . California: ESRI Press.

Gaya MLA

Davis, David, E.., Lingga, Hotben, D.. "GIS for everyone: exploring your neighborhood and your world with a geographic information system". California: ESRI Press, 2003. Text.