Joens. From Slave to State Legislator. Southern Illinois University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJoens. From Slave to State Legislator. Southern Illinois University Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रJoens. From Slave to State Legislator. Southern Illinois University Press.
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