World Bank. African development indicators. International Bank for Reconstruction and Development / The World Bank.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWorld Bank. African Development Indicators. Washington, D.C.: International Bank for Reconstruction and Development / The World Bank.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWorld Bank. African Development Indicators. International Bank for Reconstruction and Development / The World Bank.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.