Wiitala, Stephen A. <br/><br/>
Discrete mathematics  A unified approach 

 - Mcgraw-hill company, New York  1987 
 - xi, 449 
<br/><br/><label>ISBN: </label>0-07-070169-5 
<br/><br/><label>Dewey Class. No.: </label>519.4 Wii