@book{95859,
	author = {United States and Sanger, Joseph Prentiss},
	title = {Informe sobre el censo de Puerto Rico, 1899},
	publisher = {Impr. del Gobierno},
	year = {1900.},
	address = {Washington},
	note = {At head of title : Departamento de la guerra. Dirección del censo de Puerto Rico.}
}