Bus, H. Trading slavery and liberation in the Americas: The Spanish-American connection in the works of Olaudah Equiano, Herman Melville, Martin R. Delany and Sutton E. Griggs / Heiner Bus. Black liberation in the Americas.(2001).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBus, Heiner. "Trading Slavery and Liberation in the Americas: The Spanish-American Connection in the Works of Olaudah Equiano, Herman Melville, Martin R. Delany and Sutton E. Griggs / Heiner Bus." Black Liberation in the Americas.(2001) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रBus, Heiner. "Trading Slavery and Liberation in the Americas: The Spanish-American Connection in the Works of Olaudah Equiano, Herman Melville, Martin R. Delany and Sutton E. Griggs / Heiner Bus." Black Liberation in the Americas.(2001), .
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