Humphrey, Brad; Stokes, Jeff <br/><br/>
21st century supervisor: nine essential skills for frontline leaders 

 - San Francisco  Jossey-Bass Pub  2000 
 - xiv, 332p. 
<br/><br/><label>ISBN: </label>0-7879-4684-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Supervision