Patel, R.B. ; Nath, Prem <br/><br/>
Theory of automata and formal languages 

 - Delhi  Umesh Publications  2015 
 - 440p. 
<br/><br/> Te51355 
<br/><br/><label>ISBN: </label>8188114537  295 
<br/><br/><label>Dewey Class. No.: </label>511.3 PAT R