Dybwad, Gunnar <br/><br/>
Challenges in mental retardation / 
Gunnar Dybwad 
 - New York :  Columbia University Press,  c1964 
 - xii, 287 p. ;  24 cm. 
<br/><br/><label>ISBN: </label> USD 6.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>People with mental disabilities--Rehabilitation<br/>Handicapped
<br/><br/><label>Dewey Class. No.: </label>362.304