Lukasiewicz, Jan. Aristotle's syllogistic from the standpoint of modern formal logic / by J. Lukasiewicz. - 2nd ed., enl. - Oxford : Clarendon Press, 1998. - xiii, 222 p. 23 cm. Bibliographical footnotes. ISBN: 0-19-824144-5 Nat. Bib. No.: GB57-7012 Subjects--Personal Names: Aristotle Subjects--Topical Terms: Syllogism.Logic.