Unesco. (1981). Many voices one world: Towards a new more just and more efficient world information and communication order (Reprint.). Kogan Page; Unipub; Unesco.

Unesco. Many Voices One World: Towards a New More Just and More Efficient World Information and Communication Order. Reprint. London [u.a.]: Kogan Page; Unipub; Unesco, 1981.

Unesco. Many Voices One World: Towards a New More Just and More Efficient World Information and Communication Order. Reprint. Kogan Page; Unipub; Unesco, 1981.