Howard-Johnston, J. (2011). Witnesses to a world crisis: Historians and histories of the Middle East in the seventh century. Oxford: Oxford University Press.
استشهاد بنمط شيكاغوHoward-Johnston, James. Witnesses to a World Crisis: Historians and Histories of the Middle East in the Seventh Century. Oxford: Oxford University Press, 2011.
MLA استشهادHoward-Johnston, James. Witnesses to a World Crisis: Historians and Histories of the Middle East in the Seventh Century. Oxford: Oxford University Press, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.