Hopcroft, John E Jeffery D. Ullman <br/><br/>
Introduction To Automata Theory Languages and Computation / 
by John E. Hopcroft and Jeffrey D. Ullman 
 - New Delhi:  Narosa Publishing House,  1979 
 - p.418 
<br/><br/><label>ISBN: </label>8185015961 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Computer Science <br/>Computer Programming, Programming Languages
<br/><br/><label>Dewey Class. No.: </label>005.13  / HOP-I