Hopcroft/ J.E./ Ullman/ J.D.  <br/><br/>
Introd to Automata Theory Languages&Computatio 

 - New Delhi  Narosa Pub House  1979 
 - 418 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>computation