Language of the mentally retarded ... 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 ...
Schiefelbusch, Richard L.(Richard Louis),1918-
Baltimore London University Park Press [Lancaster] [Distributed by Medical and Technical Publishing Co.]
1973
Includes bibliographies and index
People with mental disabilities