Tredgold R. F., Soddy K., Tredgold A. F. <br/><br/>
Textbook of mental deficiency   

 - 9th ed. 
 - London  Bailliere, Tindall and Cox  1956 
 - 480 p.  21 cm. 
 -   .
<br/><br/>  First compiled by the late in : A. F. Tredgold 
<br/><br/>  Mental Retardation, Mental Disorders 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental Disorders<br/>Mental Retardation
<br/><br/><label>Dewey Class. No.: </label>WM300  / TRE