@book{20750,
	author = {Lefrancois. Guy R. and Dávila Martínez, José Francisco Javier,},
	title = {El Ciclo de la Vida Lefrancois. Guy R.; José Francisco Javier Dávila Martínez, tr.},
	publisher = {Internacional Thompson Editores,},
	year = {2001.},
	address = {México :},
	edition = {6.}
}