Authors: United States. Department of Health, Education, and Welfare. Vocational Rehabilitation Administration

Categories:

Authors: United States. Federal Security Agency. Office of Vocational Rehabilitation

Categories: Feeblemindedness

Authors: International Labour Office

Categories: Education

Authors: Salvatore G. DiMichael

Categories: People with mental disabilities

Authors: United States. Department of Health, Education, and Welfare. Secretary's Committee on Mental Retardation

Categories: Intellectual disability