ROGERS, J. A. (1961). Africa’s gifts to America: The Afro-American in the making and saving of the United States, with new supplement Africa and its potentialities. Helga M. Rogers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)ROGERS, Joel Augustus. Africa’s Gifts to America: The Afro-American in the Making and Saving of the United States, with New Supplement Africa and Its Potentialities. Helga M. Rogers, 1961.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)ROGERS, Joel Augustus. Africa’s Gifts to America: The Afro-American in the Making and Saving of the United States, with New Supplement Africa and Its Potentialities. Helga M. Rogers, 1961.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.