A Guide to the operation of the agreement for facilitating the international circulation of visual and auditory materials of an educational, scientific, and cultural character : Beirut agreement adopted by the General Conference of Unesco at Beirut, 1948
Bok Engelsk 1980
Utgitt | Paris : Unesco , [1980]
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Omfang | 31 p.
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Utgave | 2nd ed., with corrections.
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Emner |