Otto Henry J <br/><br/>
Principles of elementary education 

 -  1950 
<br/><br/><label>Standard No.: </label>149,538 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EDUCATION
<br/><br/><label>Dewey Class. No.: </label>T15, J0