TY  - JOUR
AU  - M. Petrich
TI  - Rings and Semigroups (Book Review by E.  Behrens).
JO  - Semigroup forum
PY  - 1976
SP  - 185
EP  - 187
VL  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1976__12_134171/
ID  - SF_1976__12_134171
ER  -