Heller, R. <br/><br/>
Peter drucker 
Robert Heller 
 -  c.2000 
<br/><br/><label>ISBN: </label>0751308188 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business management--MIS
<br/><br/><label>Dewey Class. No.: </label>658 HEL