Mental retardation and other developmental disabilities
Ehlers, Walter H.
Mental retardation and other developmental disabilities a programmed introduction Walter H. Ehlers, Jon C. Prothero, John Langone. - 3rd ed. - Columbus C.E. Merrill Pub. Co. c1982. - xi, 502 p.
Includes bibliographies and index.
0675098165 (pbk.)
81084798 //r84
Mental Retardation--Programmed instruction.
Mentally handicapped children--Services for--Programmed instruction.--United States
Developmental disabilities--Programmed instruction.
Mental retardation and other developmental disabilities a programmed introduction Walter H. Ehlers, Jon C. Prothero, John Langone. - 3rd ed. - Columbus C.E. Merrill Pub. Co. c1982. - xi, 502 p.
Includes bibliographies and index.
0675098165 (pbk.)
81084798 //r84
Mental Retardation--Programmed instruction.
Mentally handicapped children--Services for--Programmed instruction.--United States
Developmental disabilities--Programmed instruction.