Certo, Samuel C. <br/><br/>
Supervision :  concepts and skill-building / 
Samuel C. Certo 
 - 9th ed. 
 - New York, NY :  McGraw-Hill,  2016 
 - xxxiv, 567 p. :  col. ill. ;  27 cm. 
<br/><br/> includes index 
<br/><br/><label>ISBN: </label>9780077720612 (pbk.) 007772061X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Supervision of employees