TY  - BOOK
AU  - Polya George
AU  - Tarjan Robert E
AU  - Woods Donald R
TI  - Notes on introductory combinatorics
SN  - 0-8176-3123-2
U1  - 511.6 
PY  - 1983///
CY  - Boston
PB  - Birkhauser
KW  - Combinatorial analysis
ER  -