APA (7e ed.) Bronvermelding
Nieman, D. G. (1991). Promises to keep: African-Americans and the constitutional order, 1776 to the present. Oxford University.
Chicago (17e ed.) Bronvermelding
Nieman, Donald G. Promises to Keep: African-Americans and the Constitutional Order, 1776 to the Present. New York: Oxford University, 1991.
MLA (9e ed.) Bronvermelding
Nieman, Donald G. Promises to Keep: African-Americans and the Constitutional Order, 1776 to the Present. Oxford University, 1991.
Let op: Deze citaties zijn niet altijd 100% accuraat.