Certo,Samuel C. <br/><br/>
Supervision  concepts and skill building 
Samuel C.Certo 
 - 3rd. ed. 
 - Boston , Massachusetts  McGraw-Hill  1994 
 - xxxv, 569p.  ill.  26cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0072284048 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Supervision of employees.