Nagpal, C. K., Formal languages and automata theory / C.K. Nagpal, Assciate Professor, YMCA University of Science and Technology, Faridabad. - xiv, 348 pages : illustrations ; 24 cm Includes index. ISBN: 9780198071068 (Paper) 019807106X (Paper) LCCN: 2012471419 Subjects--Topical Terms: Formal languages.Sequential machine theory. LC Class. No.: QA267.3 / .N34 2011 Dewey Class. No.: 511.3 / NCF