Nagpal, C. K.  <br/><br/>
FORMAL LANGUAGES AND AUTOMATA THEORY 
C. K. Nagpal 
 - New Delhi  Oxford  c2011 
<br/><br/><label>ISBN: </label>9780198071068  225 
<br/><br/><label>Dewey Class. No.: </label>005.131  / N152Fl