Rich, Elaine A. <br/><br/>
Automata, computability and complexity:  

 - New Delhi :   Pearson,   2012 
 - 1099 pages. 
<br/><br/><label>ISBN: </label>9788130000000 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural Science and Mathematics  Mathematics