TY  - BOOK
AU  - Allenby, R.B.J.T.
AU  - Slomson, Alan
TI  - How to count: an introduction to combinatorics
SN  - 9781420082609
U1  - 511.6 
PY  - 2011///
CY  - Boca Raton
PB  - Crc Press
KW  - Combinatorial analysis
ER  -