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1by Meeting of Experts on Specialized Requirements concerning the Preservation of Films and other Audio-visual Media in Developing Countries, Buenos Aires, 1978, International Film and Television Council, Perry, Tedprogramme and meeting document bibliotecaUNESCO
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2by Meeting of Experts on Specialized Requirements concerning the Preservation of Films and other Audio-visual Media in Developing Countries, Buenos Aires, 1978, International Film and Television Council, Perry, Tedprogramme and meeting document bibliotecaUNESCO