TY  - GEN
AU  - Allenby, R. B. J. T.
AU  - Slomson, Alan.
TI  - How to count: an introduction to combinatorics 
SN  - 9871420082609
AV  - QA164 .A44 2011
PY  - 2011///
CY  - Boca Raton
PB  - CRC Press
KW  - Combinatorial analysis
N1  - "A CRC title."; First published as: an introduction to combinatorics, 1991; Includes bibliographical references and index
ER  -