TY  - BOOK
AU  - Wagner, Carl G
TI  - First course in enumerative combinatorics
T2  - Pure and applied undergraduate texts
SN  - 9789349750302
PY  - 2020///
CY  - Telangana
PB  - Universities press
KW  - Binomial coefficient
KW  - Vector space
KW  - Partially ordered set
ER  -