@book{218125,
	author = {UN. Statistical Division},
	title = {Principios y recomendaciones para los censos de población y habitación.},
	publisher = {UN},
	year = {2008},
	series = {Statistical papers. Series M / Department of Economic Statistics Division},
	address = {New York},
	edition = {Revisión 2},
	note = {At head of title: Asuntos esonómicos y sociales},
	url = {http://unstats.un.org/unsd/publication/Seriesm_67rev2e.pdf}
}