Lewis, Harry R. Elements of the theory of computation by Harry R. Lewis and Christos H. Papadimitriou - 2nd ed. - Pearson India 2015 - vii, 360 p. : ill. Includes Index ISBN: 9789332549890 Subjects--Topical Terms: Finite AutomataComputational Complexity Dewey Class. No.: 004.01 / LEW/E