Mental retardation, from categories to people 
[edited by] Patricia T. Cegelka, Herbert J. Prehm. 
 - Columbus, Ohio  Merrill  c1982. 
 - xviii, 419 p., [1] leaf of plates  ill.  26 cm. 
<br/><br/>Includes bibliographies and indexes. 
<br/><br/><label>ISBN: </label>0675098319 
<br/><br/><label>LCCN: </label>81086559 //r84 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental Retardation<br/>Mentally handicapped--Services for.
<br/><br/><label>LC Class. No.: </label>RC570  / .M4164 1982 
<br/><br/><label>Dewey Class. No.: </label>616.85/88