Davis, D. B. (2003). Challenging the boundaries of slavery. Harvard University Press.
Chicago-čujuhus (17. p.)Davis, David Brion. Challenging the Boundaries of Slavery. Cambridge, Mass.: Harvard University Press, 2003.
MLA-čujuhus (9. p.)Davis, David Brion. Challenging the Boundaries of Slavery. Harvard University Press, 2003.
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