@book{7039,
	author = {Wyngaarden, James B and , Lloyd H.Smith, autor. and Bullock, Ward, colaborador.},
	title = {Cecil :},
	publisher = {McGraw  Hill Interamericana  S.A., },
	year = {1994.},
	address = {México :},
	edition = {Diesimonovena  edición.}
}