Symposium on Semigroups held at Wayne State, Detroit, Michigan, June 27-29, 1968 <br/><br/>
Semigroups - proceedings   
ed. by Karl W. Folley 
 - New York  Academic Press  1969 
 - xi, 277p, incl ind. 
<br/><br/><label>LCCN: </label>77-84228 
<br/><br/><label>Dewey Class. No.: </label>512.2  / N69