Hopcroft, John E., 1939- Introduction to automata theory, languages, and computation / John E. Hopcroft, Rajeev Motwani, Jeffrey D. Ullman. - 3rd ed. - New Delhi : Pearson Education, c2007. - 553 p. : ill. ; 25 cm. + Includes bibliographical references and index. ISBN: 8131714292 Subjects--Topical Terms: Machine theory.Formal languages.Computational complexity. Dewey Class. No.: 629.8312 / HOI