TY - BOOK AU - Ingalls,Robert P. TI - Mental retardation: the changing outlook SN - 0471427160 AV - RC570 .I4 U1 - 616.8/588 PY - 1978/// CY - New York PB - Wiley KW - Mental Retardation KW - Etiology KW - Local KW - Education of mentally retarded KW - Mentally handicapped children KW - Education KW - Mentally handicapped KW - Care N1 - Includes index; Bibliography: p. 453-481 ER -