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1Texto bibliotecaFAO IT
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2by International Symposium on Trends in Social Science Research on Children, Austin, USA, 1979, Das, J.P.programme and meeting document bibliotecaUNESCO
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4by International Symposium on Studies on Development and on the Reduction of Inequalities in Different Socio-cultural Contexts, especially with regard to Children and Family Life-styles, Doha, 1981, Das, J.P.programme and meeting document bibliotecaUNESCO