TY  - BOOK
AU  - George, J. C. 
AU  - Wallis, W. D
TI  - Introduction to combinatorics
SN  - 9781439806227
U1  - 519.146 
PY  - 2011///
CY  - Boca raton
PB  - CRC
KW  - COMBINATORIAL ANALYSIS-TEXTBOOKS
KW  - RAMSEY MULTIPLICITY
ER  -