TY  - BOOK
AU  - Allenby,R.B.J.T.
AU  - Slomson,A.B.
AU  - Slomson,A.B.
TI  - How to count: an introduction to combinatorics 
T2  - Discrete mathematics and its applications
SN  - 9781420082609 (hbk.)
U1  - 511.6 
PY  - 2011///
CY  - Boca Raton, FL
PB  - CRC Press
KW  - Combinatorial analysis
N1  - First published as: an introduction to combinatorics, 1991; Includes bibliographical references and index
ER  -