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Education on the move : extracts from background papers prepared for the report of the International commission on the development of education / United Nations educational, scientific and cultural organization ; [contrib. by M. Messadi...et al.].
- UNESCO [etc.],
- 1975.
- Paris [etc.] :
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World communications : a 200-country survey of press, radio, television and film
- UNESCO [etc.],
- 1975.
- Paris [etc.] :