Hopcroft, J. E & Ullman, J. D <br/><br/>
Introduction to automata theory lanuguages & computation 
J. E. Hopcroft & J. D. Ullman 
 - Massachusetts  Addison-wesley  1979 
 - ix  418 
<br/><br/><label>ISBN: </label>020102988X 
<br/><br/><label>Dewey Class. No.: </label>18  / HOPC