KEYS, Bernard <br/><br/>
Supervision :  concepts, skills and assessment/ 

 - 2nd ed 
 - Canada  John Wiley & Sons  c1990 
 - xv,480p.:  ill.; 
<br/><br/> Include index 
<br/><br/><label>ISBN: </label>047163545 
<br/><br/><label>Dewey Class. No.: </label>658.3