Nieman, D. G. (1991). Promises to keep: African-Americans and the constitutional order, 1776 to the present. Oxford University.
Citace podle Chicago (17th ed.)Nieman, Donald G. Promises to Keep: African-Americans and the Constitutional Order, 1776 to the Present. New York: Oxford University, 1991.
Citace podle MLA (9th ed.)Nieman, Donald G. Promises to Keep: African-Americans and the Constitutional Order, 1776 to the Present. Oxford University, 1991.
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