Otto, Henry J. <br/><br/>
Elementary school organization and administration 
Henry J. Otto. ; Edi: Fred C. Ayer and Fred Engelhardt 
 - 2nd ed. 
 - New York  D. Appleton-Century Company  1944 
 - 571 p.  ill.  24 cm. 
<br/><br/><label>Dewey Class. No.: </label>372.12 OTT