RING theory 
/ edited by Robert Gordon 
 - New York  Academic press  1972 
 - xi, 381 p. 
<br/><br/><label>ISBN: </label>122913507 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rings
<br/><br/><label>Dewey Class. No.: </label>512.4  / RIN