LIU, C.L. <br/><br/>
INTRODUCTION TO COMBINATORIAL MATHEMATICS 

 - 1ST ED. 
 - Estados Unidos  MCGRAW-HILL  1968 NEW YORK 
 - 393 
<br/><br/><label>ISBN: </label>070381240 
<br/><br/><label>LCCN: </label>16041 
<br/><br/><label>Dewey Class. No.: </label>511.6