Leonard, Edwin C. <br/><br/>
Supervision :  concepts and practices of management / 

 - 9th ed. 
 - Mason  Thomson/South-Western,  2004. 
 - xx, 604 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0324178816 
<br/><br/><label>LC Class. No.: </label>HF5549.12  / .L55 2004