TY  - BOOK
AU  - Lallement, Gerard.
TI  - Semigroups and combinatorial applications
T2  - Pure and Applied Mathematics
SN  - 0471043796
U1  - 512.2 
PY  - 1979///
CY  - New York
PB  - John Wiley & Sons
N1  - A Wiley-Interscience Publications
ER  -