Schiefelbusch, Richard L., ed. <br/><br/>
Language of the mentally retarded 

 - Baltimore, Md. :  Univ. Park Press,  1977 
 - 252 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MENTALLY HANDICAPPED--LANGUAGE--CONGRESSES<br/>MENTAL RETARDATION<br/>SPEECH DISORDERS
<br/><br/><label>LC Class. No.: </label>RC570  / L363