(1996). Manual on GIS for planners and decision makers. United Nations.
Cita Chicago Style (17a ed.)Manual on GIS for Planners and Decision Makers. New York: United Nations, 1996.
Cita MLA (8a ed.)Manual on GIS for Planners and Decision Makers. United Nations, 1996.
Precaución: Estas citas no son 100% exactas.