Tomescu, Ioan <br/><br/>
Introduction to combinatorics 

 - London:   Collets's Publisher's Ltd.,   1975 
 - xiii, 249p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Combinatorial analysis
<br/><br/><label>Universal Decimal Class. No.: </label>519.1  / L5