George Sullivan. (2002). Harriet Tubman: In their own words. Archway.
Chicago Style (17. basım) AtıfGeorge Sullivan. Harriet Tubman: In Their Own Words. New York: Archway, 2002.
MLA (9th ed.) AtıfGeorge Sullivan. Harriet Tubman: In Their Own Words. Archway, 2002.
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