Betts, P. W. <br/><br/>
Supervisory studies :   a managerial perspective / 
P. W. Betts. 
 - 5th edition. 
 - London :   Pitman Publishing,  1989. 
 - viii, 550 pages :   illustrations ;  24 cm.  
<br/><br/>includes bibliographical refercences and index. 
<br/><br/><label>ISBN: </label>027303071X 
<br/><br/><label>Subjects--Personal Names: </label><br/>Industrial management.<br/>Supervision of employees.<br/>Supervisors. `