Language and mental retardation, empirical and conceptual considerations 
Edited by Richard L. Schiefelbusch, Ross H. Copeland [and] James O. Smith. 
 - New York  Holt, Rinehart and Winston  [1967] 
 - x, 208 p.  illus. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>67026164  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mentally handicapped children--Language.
<br/><br/><label>LC Class. No.: </label>LC4602  / .L3 
<br/><br/><label>Dewey Class. No.: </label>371.92