Andreescu, Titu,  1956- <br/><br/>
A Path to combinatorics for undergraduates/ 
Titu Andreescu, Zuming Feng. 
 - Boston:  Birkhäuser,  c2004. 
 - xiii, 228 p.:  ill.;  24 cm. 
<br/><br/><label>ISBN: </label>0817642889 (softcover) 3764342889 
<br/><br/><label>LCCN: </label>99086229 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>511.6