@book{19674,
	author = {Munch, Lourdes and Angeles, Ernesto},
	title = {Métodos y Técnicas de Investigación /},
	publisher = {Trillas,},
	year = {1990.},
	address = {México :},
	edition = {2.},
	note = {Incluye Bibliografía e Indice.}
}