Unesco & Meetinig of directors of educational docuentation centres, educational research institutes and audio visual services in Africa. (1964). The role of educational documentation centres in the promotion of audio visual techniques in Africa. UNESCO.
Cita Chicago Style (17a ed.)Unesco y educational research institutes and audio visual services in Africa Meetinig of directors of educational docuentation centres. The Role of Educational Documentation Centres in the Promotion of Audio Visual Techniques in Africa. Paris: UNESCO, 1964.
Cita MLA (8a ed.)Unesco y educational research institutes and audio visual services in Africa Meetinig of directors of educational docuentation centres. The Role of Educational Documentation Centres in the Promotion of Audio Visual Techniques in Africa. UNESCO, 1964.