Ensley,Douglas E. <br/><br/>
Elementary Linear Algebra 
Douglas E. Ensley 
 - 9th Ed. 
 - USA  John Wiley & Sons  2006 
 - 832p.:  Col:Ill.  26cm. 
<br/><br/><label>ISBN: </label>9780471476023 
<br/><br/><label>Dewey Class. No.: </label>511.1/  / ENS