Turnbull, D. (1840). Travels in the West: Cuba : with notices of Porto Rico, and the slave trade. Printed for Longman, Orme, Brown, Green, and Longmans.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Turnbull, David. Travels in the West: Cuba : With Notices of Porto Rico, and the Slave Trade. London: Printed for Longman, Orme, Brown, Green, and Longmans, 1840.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Turnbull, David. Travels in the West: Cuba : With Notices of Porto Rico, and the Slave Trade. Printed for Longman, Orme, Brown, Green, and Longmans, 1840.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.