Beach, Don M. <br/><br/>
Supervision :  focus on instruction / 
Don M. Beach, Judy Reinhartz. 
 - New York :  Harper & Row,  c1989. 
 - xix, 294 pages;  illustrations 
<br/><br/> Includes references and indexes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>School supervision--United States.
<br/><br/><label>LC Class. No.: </label>LB 2806.4 B43  / CL135