Howie, John Mackintosh. <br/><br/>
An introduction to semigroup theory / 
J. M. Howie. 
 - London :  Academic Press,  1976. 
 - x, 272 p. :  ill. ;  24 cm. 
 - L. M. S. Monographs  7. .
<br/><br/>Bibliography : p. 257-264. 
<br/><br/><label>ISBN: </label>0123569508 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Semigroups