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Dyfyniad Arddull ChicagoInternational bank for reconstruction and development. Sub-Saharan Africa: From Crisis to Sustainable Growth. Washington, D.C: The World Bank, 1989.
Dyfyniad MLAInternational bank for reconstruction and development. Sub-Saharan Africa: From Crisis to Sustainable Growth. The World Bank, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.