Gates Arthur I etc <br/><br/>
Educational psychology 

 - 3rd 
 -  1948 
<br/><br/><label>Standard No.: </label>78,454 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PSYCHOLOGY
<br/><br/><label>Dewey Class. No.: </label>S0T, H8;1