Cameron, P. J. and Lint, J. H. Van <br/><br/>
Designs, graphs, codes and their links   

 - Cambridge  Cambridge University Press  1991 
 - viii, 240p. Index 
 - London Mathematical society student texts   v. 22 .
<br/><br/>  
<br/><br/><label>Dewey Class. No.: </label>511.5  / C182.DG