Vilenkin, Naum,  1920- <br/><br/>
Combinatorial mathematics for recreation / 
N. Vilenkin ; George Yankovsky 
 - Moscow :  MIR Pub.,  1972 
 - 207 p. :  ill., plates ;  22 cm. 
<br/><br/> Revision and translation of Kombinatorika 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Combinatorial analysis<br/>Algebra<br/>Mathematics<br/>Permutation
<br/><br/><label>Dewey Class. No.: </label>512.5