Cugoano, O. (1787). Thoughts and sentiments on the evil and wicked traffic of the slavery and commerce of the human species humbly submitted to the inhabitants of Great-Britain. [s.n.].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cugoano, Ottobah. Thoughts and Sentiments on the Evil and Wicked Traffic of the Slavery and Commerce of the Human Species Humbly Submitted to the Inhabitants of Great-Britain. London: [s.n.], 1787.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Cugoano, Ottobah. Thoughts and Sentiments on the Evil and Wicked Traffic of the Slavery and Commerce of the Human Species Humbly Submitted to the Inhabitants of Great-Britain. [s.n.], 1787.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.