Hellriegel, Don <br/><br/>
management:   a competency - base approach  

 - 9th ed. 
 - Ohio:  Thomas South-Western  2002. 
 - 460P.: 
<br/><br/><label>ISBN: </label>0324055595 
<br/><br/><label>LC Class. No.: </label>HD31  / hel 2012