@book{257219,
	author = {U.S. Bureau of the Census},
	title = {Population and Housing = Puerto Rico, 2000},
	publisher = {U.S. dept.of Commerce, Economics and statistics administration, U.S. Censu Bureau},
	year = {2004},
	address = {Censo 2000 de poblacion y vivienda},
	note = {U.S. G.P.O. sales statement incorrect in publication},
	url = {http://catalog.gpo.goc/fdlpdir/locate.jsp?ItemNumber=0159-B-52&SYS=000572501}
}