TY  - BOOK
AU  - Wallis W D
AU  -  George J C
TI  - Introduction to combinatorics
T2  - Discrete mathematics and its applications
SN  - 9781439806227 (hbd)
U1  - B281, Q1 
PY  - 2011///
CY  - Boca Raton 
PB  - CRC Pres     
KW  -  Combinatorial analysis-textbooks
KW  - Mathematics
N1  - Appendices 1-3, 271-312p.; References 367-374p.; Index 375-380p
ER  -