Tothill, J. D. (1948). Agriculture in the Sudan: Being a handbook of agriculture as practised in the Anglo-Egyptian Sudan. London: Oxford Univresity Press.
استشهاد بنمط شيكاغوTothill, John Douglas. Agriculture in the Sudan: Being a Handbook of Agriculture As Practised in the Anglo-Egyptian Sudan. London: Oxford Univresity Press, 1948.
MLA استشهادTothill, John Douglas. Agriculture in the Sudan: Being a Handbook of Agriculture As Practised in the Anglo-Egyptian Sudan. London: Oxford Univresity Press, 1948.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.