TY - BOOK AU - Berg J. M., International Association for the Scientific Study of Mental Deficiency. Congress (7th: 1985: New Delhi) , World Health Organization TI - Science and service in mental retardation SN - 0416406505 U1 - WM300 PY - 1986/// CY - London PB - Methuen KW - Mental Retardation N1 - Based on: Proceedings of the Seventh Congress of the International Association for the Scientific Study of Mental Deficiency(IASSMD) co-sponsored by the World Health jkorganization New Delhi, India 24-28 March, 1985 N2 - Mental Retardation ER -