@book{2972,
	author = {Copi, Irving M. and Míguez, Néstor, trad.},
	title = {Introducción a la lógica},
	publisher = {Eudeba,},
	year = {1967.},
	series = {Manuales de Eudeba/Filosofía},
	address = {Buenos Aires:},
	edition = {4a.}
}