@book{91252,
	author = {Dagum, Camilo and Bee de Dagum, Estela M.,},
	title = {Introducción a la econometría /},
	publisher = {Siglo veintiuno,},
	year = {1979},
	address = {México :},
	edition = {6a ed.},
	note = {1 ejemplar}
}