Wallis, W. D. <br/><br/>
Introduction to combinatorial designs  / 

 - 2nd 
 - Boca Raton:  Chapman & Hall/CRC Press,  2007 
 - xvi, 311p. Bibl. Index. 
 - Discrete Mathematics and its applications .
<br/><br/><label>ISBN: </label>1584888385 
<br/><br/><label>Dewey Class. No.: </label>511.6  / W214.IC