@book{28576,
	author = {Copi, Irving M.  and Míguez, Néstor Alberto },
	title = {Introducción a la lógica / },
	publisher = {Eudeba, },
	year = {2016},
	series = {Manuales},
	address = {Buenos Aires : },
	edition = {4a ed., 6a reimpr.},
	note = {Título original: Introduction to logic}
}