@book{4004,
	author = {FISCHER DE LA VEGA, LAURA. and NAVARRO VEGA, ALMA.},
	title = {INTRODUCCION A LA INVESTIGACION DE MERCADOS/ },
	publisher = {MCGRAW-HILL},
	year = {1990},
	address = {MEXICO: },
	edition = {2},
	note = {INCLUYE INDICE.}
}