TY  - BOOK
AU  - Andreescu,Titu
AU  - Feng,Zuming  .
TI  - A path to combinatorics for undergraduates : counting strategies / 
SN  - 8181283368
U1  - 511.6 
PY  - 2005///
CY  - Cambridge : 
PB  - Birkhauser , 
KW  - COMBINATORIAL ANALYSIS
N1  - includes bibliography & index
ER  -