Spriegel, William R. <br/><br/>
Elements of supervision  / 
William R. Spriegel. 
 - 2nd ed. 
 - New York :  J. Wiley,  c1957. 
 - xi, 349 p. :  ill. 
<br/><br/><label>ISBN: </label>0882440349 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management.<br/>Supervision of employees.