Clifford, A. H. <br/><br/>
The algebraic theory of semigroups 
by A.H. Clifford and G.B. Preston. 
 - Providence  American Mathematical Society  1961- 
 - v.  26 cm. 
 - Mathematical surveys  no. 7 .
 - Mathematical surveys  no. 7. .
<br/><br/> 920327 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>61015686 //r832 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Semigroups.
<br/><br/><label>LC Class. No.: </label>QA171  / .C55 
<br/><br/><label>Dewey Class. No.: </label>512.86