Sipser, Michael. Introduction to the theory of computation / Michael Sipser. - 2nd ed. - Delhi: Thomson, c2007. - xvii, 437p.: ill.;, figs.;, tables.; 21 cm. Includes index. Dept. of CSE ISBN: 8131501620 Subjects--Topical Terms: Computability theory Dewey Class. No.: 006.3 / SII