TY  - BOOK
TI  - Combinatorial theory
T2  - Wiley-Interscience series in discrete mathematics
SN  - 0471091383 | 9788126549443
PY  - 1983///
CY  - New York
PB  - Wiley
N1  - A Wiley-Interscience publication." | Includes index."
ER  -