University of the Witwatersrand  _ <br/><br/>
Group and semigroup rings: proceedings of the international conference on group and semigroup rings 

 - Johannesbrug  University of Witwatersrand  1985 
 - viii, 267p .  22 cm.  PB 
 - North-Holland mathematics studies .
<br/><br/> aInternational conference on group and semigroup and rings(1985: University of the Witwatersrand 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Group rings, congresses<br/>Semigroups, congresses
<br/><br/><label>Dewey Class. No.: </label>510  / GRO