@book{1291,
	author = {Dulcey Ruíz, Elisa and Ruíz González, Esmeralda},
	title = {Ciclo vital, envejecimiento y vejez : },
	publisher = {Defensoría del Pueblo,},
	year = {1993.},
	address = {Bogotá :},
	url = {portadas/ciclovital.jpg}
}