Patel, R.B <br/><br/>
Theory of Automata and Formal languages 
R.BPatel 
 - 1st 
 - New Delhi  Umesh  2005 
 - xiv,495 
<br/><br/><label>ISBN: </label>8188114537 
<br/><br/><label>Dewey Class. No.: </label>511.3  / P294T