Tredgold A F comp <br/><br/>
Text book of mental difficiency rev by R F Tredgold and K Soddy 

 -  1956 
<br/><br/><label>Standard No.: </label>83,743 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PSYCHOLOGY
<br/><br/><label>Dewey Class. No.: </label>S63, J6