@book{1444,
	author = {Gujarati, Damodar N. and Arango Medina, Gladys},
	title = {Econometría básica},
	publisher = {McGraw-Hill},
	year = {1997},
	address = {Bogotá :},
	edition = {3a. ed},
	url = {https://biblioeco.unsa.edu.ar/pmb/images/libros/Econometr?a b?sica.jpg}
}