TY  - BOOK
AU  - Martin, George E.
AU  - 
TI  - Counting : The art of enumerative combinatorics
T2  - Undergraduate texts in Mathematics
SN  - 038795225X
U1  - 511.6 
PY  - 2001///
CY  - New York
PB  - Springer-Verlag
ER  -