Philosophical Society of the Sudan. (1958). The Population of Sudan: Report on the sixth annual conference. [Khartoum]: Philosophical Society of Sudan.
استشهاد بنمط شيكاغوPhilosophical Society of the Sudan. The Population of Sudan: Report On the Sixth Annual Conference. [Khartoum]: Philosophical Society of Sudan, 1958.
MLA استشهادPhilosophical Society of the Sudan. The Population of Sudan: Report On the Sixth Annual Conference. [Khartoum]: Philosophical Society of Sudan, 1958.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.