@book{1470,
	author = {Mangay-Maglacas, A.  and Pizurki, H},
	title = {Cuadernos de Salud Publica 75.},
	publisher = {Organizacion Mundial de la Salud},
	year = {1981},
	address = {Ginebra},
	edition = {1° ed. }
}