@book{56857,
	author = {Gorski, D. P. ; dir. \ Tavants, P. V. ; dir.Ì},
	title = {Lógica / dir. de D. P. Gorski y P. V. Tavants ; tr. por Augusto Vidal Roget},
	address = {México : Grijalbo},
	edition = {2}
}