(1980). The Multilateral exchange of educational audio-visual materials: Existing mechanisms and suggestions for the future. Unesco.
Chicago-Zitierstil (17. Ausg.)The Multilateral Exchange of Educational Audio-visual Materials: Existing Mechanisms and Suggestions for the Future. Paris: Unesco, 1980.
MLA-Zitierstil (9. Ausg.)The Multilateral Exchange of Educational Audio-visual Materials: Existing Mechanisms and Suggestions for the Future. Unesco, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.