Percus ,J. K <br/><br/>
Combinatorial Methods.   
  

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 - New York  Spriger-verlag  1971 
 - Ix, 194 pgs; Index 26 Cms, illus. 
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<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510.78 Per/Com