De Morgan, Augustus, 1806-1871. A budget of paradoxes/ Reprinted, with the author's additions, fr om the Athenaeum. - 2d ed., edited by David Eugene Smith, with a new introd. by Ernes t Nagel. Unabridged ed. - New York : Dover Publications, [1954] - 2 v. in 1. ; 21 cm. Includes bibliographical references Dewey Class. No.: 081