Kahn, A. J., & Kamerman, S. B. (1977). Social services in international perspective: The emergence of the sixth system. U.S. Dept. of Health, Education, and Welfare, Social and Rehabilitation Service, Office of Planning, Research and Evaluation.
Style de citation Chicago (17e éd.)Kahn, Alfred J., et Sheila B. Kamerman. Social Services in International Perspective: The Emergence of the Sixth System. [Washington]: U.S. Dept. of Health, Education, and Welfare, Social and Rehabilitation Service, Office of Planning, Research and Evaluation, 1977.
Style de citation MLA (9e éd.)Kahn, Alfred J., et Sheila B. Kamerman. Social Services in International Perspective: The Emergence of the Sixth System. U.S. Dept. of Health, Education, and Welfare, Social and Rehabilitation Service, Office of Planning, Research and Evaluation, 1977.