Conference on Combinatorial Mathematics and its Applications, Oxford,1969 <br/><br/>
Combinatorial mathematics and its applications   
ed. by D.J.A. Welsh 
 - London  Academic Press  1971 
 - x, 364p., incl bibl. & ind. 
<br/><br/><label>ISBN: </label>0127433503 
<br/><br/><label>LCCN: </label>75-141734 
<br/><br/><label>Dewey Class. No.: </label>511.6  / N715