@book{30982,
	author = {Martínez Bencardino, Ciro and Rodríguez Fagua, Juan Francisco.,},
	title = {Estadística comercial :},
	publisher = {Editorial Norma,},
	year = {©1981.},
	series = {Mejores recursos humanos en la empresa},
	address = {Bogotá :}
}