Hall,Linda D.  <br/><br/>
Encyclopedia of business information sources  [[Book] /] 
Linda D. Hall. 
 - 20th.ed. 
 - united states of america :  Gale Group,  2005. 
 - 1287 ;  30cm. 
<br/><br/> All age. 
<br/><br/><label>ISBN: </label>0787683051 
<br/><br/><label>Dewey Class. No.: </label>650.016 
<br/><br/><label>National Library of Medicine Call No.: </label>650.016  / H E