Tredgold, Alfred Frank,    1870- <br/><br/>
A text-book of mental deficiency (amentia) /    
Alfred Frank Tredgol d. 
 - 7th ed. 
 - London :   Bailliere, Tindall & Cox,   1949. 
 - xvi, 543 p. :    illus. ;    23 cm. 
<br/><br/>  1st-5th editions pub. under title : Mental deficiency (amentia). 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inefficiency, Intellectual.--------
<br/><br/><label>Dewey Class. No.: </label>157.8