Howie, John M. <br/><br/>
Introduction to semigroup theory / 
J. M. Howie. 
 - London ;  New York :  Academic Press,  1976. 
 - x, 272 p. :  ill. ; 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0123569508 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Semigroups.
<br/><br/><label>Universal Decimal Class. No.: </label>512.53  / HOW