Welsby, D. A., Daniels, C., Allason-Jones, L., & Kirwan, L. (1991). Soba: Archaeological research at a medieval capital on the Blue Nile. London: British Institute in Eastern Africa.
استشهاد بنمط شيكاغوWelsby, Derek A.,, Charles Daniels, Lindsay Allason-Jones, و Laurence Kirwan. Soba: Archaeological Research At a Medieval Capital On the Blue Nile. London: British Institute in Eastern Africa, 1991.
MLA استشهادWelsby, Derek A.,, Charles Daniels, Lindsay Allason-Jones, و Laurence Kirwan. Soba: Archaeological Research At a Medieval Capital On the Blue Nile. London: British Institute in Eastern Africa, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.