TY  - BOOK
AU  - Allenby,R.B.J.T.
AU  - Slomson,A.B.
TI  - How to count : an introduction to combinatorics 
SN  - 9781420082609 : 
U1  - 511.6 ALL S  
PY  - 2011///
CY  - Boca Raton, FL
PB  - CRC Press
KW  - Combinatorial analysis
KW  - Permutations--Combinations
KW  - Ramsey theory
N1  - What's it all about? -- Permutations and combinations -- Occupancy problems -- The inclusion-exclusion principle -- Stirling and Catalan numbers -- Partitions and dot diagrams -- Generating functions and recurrence relations -- Partitions and generating functions -- Introduction to graphs -- Trees -- Groups of permutations -- Group actions -- Counting patterns -- Pólya counting -- Dirichlet's pigeonhole principle -- Ramsey theory -- Rook polynomials and matchings
ER  -