Language of the mentally retarded 
Edited by Richard L. Schiefelbusch 
 - Baltimore  University Park Press  1972 
 - 252 p. : ill. ; 25 cm. 
 - NICHD-Mental retardation research centers series .
<br/><br/> 'The edited proceedings of a conference sponsored by the National Institute of Child Health and Human Development and hosted by the University of Kansas Bureau of Child Research, Lawrence, Kansas, February 16-18, 1970.' 
<br/><br/><label>ISBN: </label>0839106297 
<br/><br/><label>LCCN: </label>70-0169194 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mentally handicapped--Language--Congresses