Dewees, J. (1854). The great future of America and Africa: An essay showing our whole duty to the black man, consistent with our own safety and glory. Printed for the author by H. Orr.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Dewees, Jacob. The Great Future of America and Africa: An Essay Showing Our Whole Duty to the Black Man, Consistent with Our Own Safety and Glory. Philadelphia: Printed for the author by H. Orr, 1854.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Dewees, Jacob. The Great Future of America and Africa: An Essay Showing Our Whole Duty to the Black Man, Consistent with Our Own Safety and Glory. Printed for the author by H. Orr, 1854.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.