Ljapin E S <br/><br/>
Semigroups 

 - Providence  American Mathematical Society         1974 
 - xiii, 515p.  cm. 
 - Translations of mathematical monographs .
<br/><br/><label>Standard No.: </label>20070 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B27, L492