Spears, Harold <br/><br/>
Improving the supervision of instruction 
Harold Spears 
 - Englewood Cliffs:  Prentice Hall,  1953. 
 - xii, 478p. 
<br/><br/> Includes index 
<br/><br/><br/>Eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>School supervision<br/>Teaching
<br/><br/><label>Dewey Class. No.: </label>371.3  / SPI