Luthan, I.S. <br/><br/>
Algebra;v.2  Rings 

 - Delhi  Narosa Publishing house  1999 
 - 339p.  22cm.PB. 
<br/><br/><label>ISBN: </label>8173193134 
<br/><br/><label>Dewey Class. No.: </label>512.4  / LUT