Greene, R. W. (2001). Open access: GIS in e-Government. ESRI Press.
Cita Chicago (17th ed.)Greene, R. W. Open Access: GIS in E-Government. Redlands, California: ESRI Press, 2001.
Cita MLA (9th ed.)Greene, R. W. Open Access: GIS in E-Government. ESRI Press, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.