Não informado. (1989). Proceedings of the World Bank Annual Conference on Development Economics. World Bank.
Lua i Stíl Chicago (17ú heag.)Não informado. Proceedings of the World Bank Annual Conference on Development Economics. Washington: World Bank, 1989.
Lua MLA (8ú heag.)Não informado. Proceedings of the World Bank Annual Conference on Development Economics. World Bank, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.