TY  - BOOK
AU  - Ehlers, Walter. H.
AU  - Prothero, Jon. C.
AU  - John Langone.
TI  - Mental Retardation and other developmental disabilities: a programmed introduction 
SN  - 0675098165
U1  - 616.8588 EHL 
PY  - 1982///
CY  - London
PB  - Chaeles E. Merrill Publishing Company
KW  - 	 Intellectual disability
KW  - Programmed instruction
KW  - Developmental disabilities
KW  - Children with mental disabilities
KW  - Services for
KW  - United States
N1  - Includes bibliographical references
ER  -