Copi, Irving M. Logica simbolica / Irving M. Copi / trad. Andres Sestier Bouclier - Mexico : Continental , 1982 , c1979. - 407p. pb. : tbs. ISBN: 968-26-0134-7 Subjects--Topical Terms: Logica Simbolica y Matematica Dewey Class. No.: 511.3 COP