Graham, Ronald L; Knuth, Donald E & Patashnik, Oren <br/><br/>
Concrete mathematics 

 - 2nd ed 
 - Pearson Education, Asia  1994 
 - xiii,657 
<br/><br/><label>ISBN: </label>81-7808-543-7 
<br/><br/><label>Dewey Class. No.: </label>510 Gra