HELLRIEGEL. <br/><br/>
Testbank management 6e / 
HELLRIEGEL. 
 - 6th ed. 
 - [S.l.] :  Addison Wesley Longman Publishing Co,  1992. 
 - 1 v. (unpaged) 
<br/><br/><label>ISBN: </label>0201526026 (paperback) 9780201526028 (paperback)