Rowen, Louis H. <br/><br/>
Ring theory   

 - student 
 - Boston  Academic Press  1991 
 - xxvii, 623p. Bibl. Index. 
<br/><br/>  
<br/><br/><label>ISBN: </label>0125998406 
<br/><br/><label>Dewey Class. No.: </label>512  / R881.RT