(1979). Appropriate technologies for Third World development: Proceedings of a conference held by the International Economic association at Teheran, Iran. London: The Macmillan Press.

Appropriate Technologies for Third World Development: Proceedings of a Conference Held By the International Economic Association At Teheran, Iran. London: The Macmillan Press, 1979.

Appropriate Technologies for Third World Development: Proceedings of a Conference Held By the International Economic Association At Teheran, Iran. London: The Macmillan Press, 1979.