Singh, N.M. et al <br/><br/>
Topics in discrete Mathematics: Codes, Tableaux, designs and graphs, N.M.Singh, eng 

 - New Delhi, New Age International, In  1997 
 - xv, 236p.  24 cm. 
<br/><br/><label>ISBN: </label>8122411150 
<br/><br/><label>Dewey Class. No.: </label>511,  / D, Sin