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1by Intergovernmental Conference on the Planning of National Documentation, Library and Archives Infrastructures, Paris, 1974, International Federation for Information and Documentation, International Federation of Library Associations and Institutions, International Council on Archives, Becker, Joseph, Burchinal, Lee G.programme and meeting document bibliotecaUNESCO
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2by Intergovernmental Conference on the Planning of National Documentation, Library and Archives Infrastructures, Paris, 1974, International Federation for Information and Documentation, International Federation of Library Associations and Institutions, International Council on Archives, Becker, Joseph, Burchinal, Lee G.programme and meeting document bibliotecaUNESCO