Hopcroft J E et <br/><br/>
Introdution to automata theory languages and computation 

 - New Delhi  Pearson  2001 
 - xiv,521 p. 
<br/><br/><label>ISBN: </label>9788178083476 
<br/><br/><label>Dewey Class. No.: </label>SC/ST D6,77(D6,8(B)) L9HI,P1;12