@book{175659,
	author = {Giry, Marcel and Gallardo, Glenn, tr.},
	title = {Aprender a razonar, aprender a pensar  /},
	publisher = { Siglo XXI,},
	year = {2002},
	address = {México  :},
	note = {Título original: Apprendre à Raisonner, Apprendre à Penser}
}