Copi, Irving M. Introduction to logic / Irving M. Copi, Carl Cohen. - 11th ed. - Upper Saddle River, N. J. : Prentice Hall, c2002. - xxi, 647p. : ill. ; 24 cm. Includes bibliographical references ISBN: 0130337358 Subjects--Topical Terms: Logic LC Class. No.: BC108 / C79 2002