Hopcroft, John E. <br/><br/>
Introduction to Automata Theory, Languages, and Computation 

 - 2nd 
 - New Delhi  Pearson Education  2003 
 - 521p. 
<br/><br/><label>ISBN: </label>9788178083476 
<br/><br/><label>Dewey Class. No.: </label>004.1