Wiles, Kimball. <br/><br/>
Supervision for better schools 
[by] Kimball Wiles [and] John T. Lovell. 
 - 2th ed. 
 - Englewood Cliffs, N.J.  Prentice-Hall  c1956. 
 - xvi, 399 p.  illus. 
<br/><br/>Bibliography: p. 349-362. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>School supervision
<br/><br/><label>Dewey Class. No.: </label>371.2/013