Hopcroft, John E. <br/><br/>
Introduction to automata theory, languages and computation 

 - 3rd ed. 
 - New Delhi  Pearson  2008 
 - xvi, 487p. 
<br/><br/><label>ISBN: </label>9788131720479 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Formal languages<br/>Computational complexity. 
<br/><br/><label>Dewey Class. No.: </label>005.131 HOP/I