Kernan Keith T Ed. <br/><br/>
Environments and behavior    The adaptation of mentally retarded persons.      
Kernan Keith T Ed.; Begab Michael J Ed.; Edgerton Robert B Ed. 
 - Baltimore  University Park Press       1983 
 - xii,335p.  cm. 
 - NICHD-Mental retardation research centers series. .
<br/><br/><label>Standard No.: </label>42220 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>S62, M3