Mishra, K. L. P. <br/><br/>
Theory of computer science :  Automata Languages and computation.Ed2.1998 / 

 - 2nd ed. 
 - New Delhi :  PHI ,  1998. 
 - 304 p. 
<br/><br/><label>ISBN: </label>8120312716 
<br/><br/><label>Subjects--Index Terms: </label>Computer Science