The use of audio-visual aids in education for international understanding : report and recommendations of the international seminar organized by the Unesco Institute for Education in association with the Hungarian National Commission for UNESCO, Budapest, 27th July-8th August, 1965
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書誌事項
The use of audio-visual aids in education for international understanding : report and recommendations of the international seminar organized by the Unesco Institute for Education in association with the Hungarian National Commission for UNESCO, Budapest, 27th July-8th August, 1965
（Publications on education for international understanding, no. 9）
Unesco Institute for Education, 1966