Language and mental retardation, empirical and conceptual considerat ions / 
edited by Richard L. Schiefelbusch, Ross H. Copeland [and] Ja mes O. Smith. 
 - New York :  Holt, Rinehart and Winston,  [1967] 
 - x, 208 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>LCCN: </label>67-026164 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Children with mental disabilities-- Language.
<br/><br/><label>Dewey Class. No.: </label>371.92