Preparation Franco  p. and yeh raymond T. <br/><br/>
Introduction to dicreate strucures / 

 - Addison wesley /  Addison wesley /  c1974 
 - 354 p, ;  NA  24cm. 
<br/><br/><label>ISBN: </label>NA 
<br/><br/><label>Dewey Class. No.: </label>511