Robinson, D. a. S., & Robinson, D. a. (1979). Sources of the African past: Case studies of five nineteenth century African societies. Heinemann.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRobinson, David and Smith, और David and;Smith Robinson. Sources of the African Past: Case Studies of Five Nineteenth Century African Societies. Heinemann, 1979.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRobinson, David and Smith, और David and;Smith Robinson. Sources of the African Past: Case Studies of Five Nineteenth Century African Societies. Heinemann, 1979.
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