A First Course in Noncommutative Rings/ 
Lam,Tsi-Yuen 
 - 2nd 
 - New York:  Springer,  2001-07-01. 
 - 385 
<br/><br/><label>ISBN: </label>0387953256 
<br/><br/><label>Dewey Class. No.: </label>512.4  / LAM/G