Shukla, Rajesh K. <br/><br/>
Theory of computation / 
By Rajesh K Shukla. 
 - 1st ed. 
 - New Delhi :  Cengage Learning ,  2009. 
 - xii;296p. ;  PB  24.5 cm 
<br/><br/><label>ISBN: </label>9788131511046 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Regular expressions<br/>Pushdown automata<br/>Intractable problems
<br/><br/><label>Dewey Class. No.: </label>511.3   / SHUR