Spriegel, William R.  1893-1972. <br/><br/>
Elements of supervision / 
William R. Spriegel, Edward Schulz  
 - New York ;  London :  Wiley,  c1956 
 - xvii, 273 p. :  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Personnel management.
<br/><br/><label>Dewey Class. No.: </label>658.3  / SPE 1960