Welsby, D. A. (2011). Sudan's first railway: The Gordon Relief Expedition and the Dongola Campaign. London: SARS.
استشهاد بنمط شيكاغوWelsby, Derek A.. Sudan's First Railway: The Gordon Relief Expedition and the Dongola Campaign. London: SARS, 2011.
MLA استشهادWelsby, Derek A.. Sudan's First Railway: The Gordon Relief Expedition and the Dongola Campaign. London: SARS, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.