@book{63704,
	author = {Giusti de Pérez, Rosario C. and Pérez, Ramon A.},
	title = {Analyzing urban poverty  GIS for the developing world},
	publisher = {ESRI Press},
	year = {2008},
	address = {Redlands (California, Estados Unidos)},
	url = {http://www.loc.gov/catdir/toc/ecip087/2007052630.html}
}