Hay, Warren W. <br/><br/>
Supervision :  complete Australian course / 
W. Warren Hay, edited by Lester R. Bittel. 
 - New York :  McGraw-Hill,  1970. 
 - x, 456 p. :  ill. 
<br/><br/><label>ISBN: </label>0123456789 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Supervision.