Business Essentials / 
Ebert, Ronald ; Ricky Griffin ; Starke Frederick . 
 - 3rd ed. 
 - Toronto:  Prentice Hall,  2003. 
 - xviii,492 p,: 
<br/><br/><label>ISBN: </label>0130432644 
<br/><br/><label>LC Class. No.: </label>HD70  / .E223  2003