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 1969
Utgitt | Paris : Unesco , 1969
|
---|---|
Omfang | 31 s.
|
Utgave | 2nd ed.
|
Emner |