Hopcroft, John E. Motwani, Rajeev. Ullman, Jeffrey D. <br/><br/>
Introduction to automata theory, languages and computation 

 - 2nd ed. 
 - Delhi  Pearson Education  2001 
 - 534 
<br/><br/><label>ISBN: </label>9788178083476 
<br/><br/><label>Dewey Class. No.: </label>001.6424  HOP;76