Robertson, W. P. (1853). A visit to Mexico, by the West India islands, Yucatan and United States: With observations and adventures on the way. Simpkin, Marshall.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Robertson, Wm. Parish. A Visit to Mexico, by the West India Islands, Yucatan and United States: With Observations and Adventures on the Way. London: Simpkin, Marshall, 1853.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Robertson, Wm. Parish. A Visit to Mexico, by the West India Islands, Yucatan and United States: With Observations and Adventures on the Way. Simpkin, Marshall, 1853.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.