Wittgenstein, Ludwig, Tractatus logico-philosophicus / Ludwig Wittgenstein ; with an introduction by Bertrand Russell. - London : Routledge & Kegan Paul, 1922 [reprinted 1971] - 207 p. : Includes index. ISBN: 0710030045 Subjects--Topical Terms: Logic, Symbolic and mathematical. Dewey Class. No.: 192 / Tr