Lewis, Harry R. <br/><br/>
Elements of the theory computation / 
By Harry R Lewis and Christos H Papadimitriou. 
 - 2nd ed. 
 - New Delhi :  Pearson Education ,  2008. 
 - 361p. ;  PB  24.6 cm 
<br/><br/><label>ISBN: </label>9788131703878 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sets relations and languages<br/>Turing machines<br/>Computational complexity
<br/><br/><label>Dewey Class. No.: </label>511.3  / LEWH