Petrich, Mario. <br/><br/>
Lectures in semigroups / 
Mario Petrich. 
 - London ; New York :  London ; New York :  Wiley,  c1977. 
<br/><br/> "Most of the present material was the content of a course given to advanced graduate students at the Pennsylvania State University in 1972/73."  Includes index. 
<br/><br/>Bibliography: p. [153]-164. 
<br/><br/><label>ISBN: </label>0471995142 
<br/><br/><label>LCCN: </label>77004399 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Semigroups.<br/>Matrices.<br/>Decomposition (Mathematics)
<br/><br/><label>LC Class. No.: </label>QA171  / .P44 
<br/><br/><label>Dewey Class. No.: </label>512/.2