Affairs, U. N. D. o. I. E. a. S. (1979). Improving social statistics in developing countries: Conceptual ..... methods. United Nations.
Style de citation Chicago (17e éd.)Affairs, United Nations. Dept. of International Economic and Social. Improving Social Statistics in Developing Countries: Conceptual ..... Methods. United Nations, 1979.
Style de citation MLA (9e éd.)Affairs, United Nations. Dept. of International Economic and Social. Improving Social Statistics in Developing Countries: Conceptual ..... Methods. United Nations, 1979.
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