Certo, Samuel C. <br/><br/>
Supervision :  concepts and skill-building / 
Samuel C. Certo. 
 - 6th ed. 
 - Boston :  McGraw-Hill/Irwin,  2008. 
 - xxx, 573 p. :  ill. ;  26cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0073405000 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Supervision of employees.