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1by Symposium on Future Programmes of Information and Communication in Educational Policy and Planning, Paris, 1977, Center for Educational Studies, Muñoz Izquierdo, Carlosprogramme and meeting document bibliotecaUNESCO
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2by Symposium on Future Programmes of Information and Communication in Educational Policy and Planning, Paris, 1977, Sulayti, Hamad A., Quasem, K.A., Ekuban, E.E., Muñoz Izquierdo, Carlos, Gohar, Salah A.programme and meeting document bibliotecaUNESCO