Davies, Stanley Powell,  1892- <br/><br/>
The mentally retarded in society / 
Stanley Powell Davies, with the collaboration of Katharine G. Ecob. 
 - New York :  Columbia University Press,  [Reprinted1959-68] 
 - 248 p. ;  22 cm. 
<br/><br/>Includes bibliography. and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>People with mental disabilities--United States.
<br/><br/><label>Dewey Class. No.: </label>362.30973  / DAM 1968