Hopcroft, John E. <br/><br/>
Introduction to automata theory languages, and computation 
John E. Hopcroft, Jeffrey D. Ullman. 
 - New Delhi  Narosa Publishing House  1999 
 - xii, 418p.; 22cm. 
<br/><br/> Ullman, Jeffrey D. 
<br/><br/><label>Dewey Class. No.: </label>005.131  / H81I