Dale Edgar <br/><br/>
Audio-visual method in teaching 
Dale Edgar 
 -  1950 
<br/><br/><label>Standard No.: </label>149,206 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EDUCATION
<br/><br/><label>Dewey Class. No.: </label>T:85, J0