Chetwynd, A., <br/><br/>
Discrete Mathematics 
A. Chetwynd, P. Diggle 
 - Boston :  Butter Worth Heinemann,  c1995. 
 - 209 p.:  [148] 
<br/><br/><label>ISBN: </label>0340610476 
<br/><br/><label>Dewey Class. No.: </label>511.2  / CHE/DIS