Lewis, David Kellog, 1941- On the plurality of worlds / David Kellog Lewis - Oxford : Basil Blackwell, c1986 - ix, 276 p. ; 23 cm. Includes index ISBN: 0631139931 : PND 25.00 Subjects--Topical Terms: Plurality of worldsModality (Theory of knowledge)Realism Dewey Class. No.: 111