%0 Journal Article
%A M. Petrich
%T Rings and Semigroups (Book Review by E.  Behrens).
%J Semigroup forum
%D 1976
%P 185-187
%V 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1976__12_134171/
%F SF_1976__12_134171