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

 - NA  Pearson Education Inc,  c2012. 
 -  x, 470 p. ;  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>9788131702055 
<br/><br/><label>LC Class. No.: </label>005.1 
<br/><br/><label>Dewey Class. No.: </label>005.1