TY  - BOOK
AU  - Andreescu, Titu
AU  - Feng, Zuming
TI  - A Path to Combinatorics for Undergraduates: Counting Strategies
SN  - 9788181283368
U1  - 511.6 
PY  - 2005///
CY  - Boston
PB  - Birkhauser
KW  - General
ER  -