Não informado. (1989). Proceedings of the World Bank Annual Conference on Development Economics. World Bank.
Chicago-Zitierstil (17. Ausg.)Não informado. Proceedings of the World Bank Annual Conference on Development Economics. Washington: World Bank, 1989.
MLA-Zitierstil (8. Ausg.)Não informado. Proceedings of the World Bank Annual Conference on Development Economics. World Bank, 1989.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.