Petherick, J. (1861). Egypt, the Soudan and Central Africa: With explorations from Khartoum on the White Nile, to the regions of the equator ; being sketches from sixteen years' travel. W. Blackwood and sons.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Petherick, John. Egypt, the Soudan and Central Africa: With Explorations from Khartoum on the White Nile, to the Regions of the Equator ; Being Sketches from Sixteen Years' Travel. Edinburgh ; London: W. Blackwood and sons, 1861.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Petherick, John. Egypt, the Soudan and Central Africa: With Explorations from Khartoum on the White Nile, to the Regions of the Equator ; Being Sketches from Sixteen Years' Travel. W. Blackwood and sons, 1861.
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