Aho, Alfred V. ; Hopcroft, John E. ; Ullman, Jeffrey D. <br/><br/>
The design and analysis of computer algorithms 

 - NewDelhi  Pearson  2013 
 - 469 
<br/><br/><label>ISBN: </label>9788131702055 
<br/><br/><label>Dewey Class. No.: </label>511 AHO