Vasudeva, C. <br/><br/>
Theory  and  problems  of  combinatorics 

 - 1st /   2008. 
 - Delhi:  New  Age  International  Publishers,  2008. 
 - 292p. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Mathematics, General Principles  of  Mathematics. 
<br/><br/><label>Dewey Class. No.: </label>511.6