Black, R. P., & Simaika, Y. M. (1951). The Nile Basin: The future conservation of the nile. eastern press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBlack, R. P., और Y. M. Simaika. The Nile Basin: The Future Conservation of the Nile. cairo: eastern press, 1951.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBlack, R. P., और Y. M. Simaika. The Nile Basin: The Future Conservation of the Nile. eastern press, 1951.