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

 - Baltimore:  University Park Press,  1972 
 - xxii, 252 p.:  ill. ;  23cm 
 - NICHD - Mental Retardation Research Centers series .
<br/><br/> Acc. No. 10111 
<br/><br/><label>ISBN: </label>0839106297 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language development - Congresses<br/>Language disorders - Congresses<br/>Mental retardation - Congresses