Spears, Harold <br/><br/>
Improving The Supervision of Instruction / 
Harold Spears,  
 - New York :  Prentice-Hall, Inc.  1961 
 - 477 p. :  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>School Mangement and Organization
<br/><br/><label>Dewey Class. No.: </label>371.1  / SPE 1961