Williamson, H. (1811). Observations on the climate in different parts of America, compared with the climate in corresponding parts of the other continent: To which are added, remarks on the different complexions of the human race : with some account of the aborigines of America : being an introductory discourse to the History of North-Carolina. Printed and sold by T. & J. Swords.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Williamson, Hugh. Observations on the Climate in Different Parts of America, Compared with the Climate in Corresponding Parts of the Other Continent: To Which Are Added, Remarks on the Different Complexions of the Human Race : With Some Account of the Aborigines of America : Being an Introductory Discourse to the History of North-Carolina. New-York: Printed and sold by T. & J. Swords, 1811.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Williamson, Hugh. Observations on the Climate in Different Parts of America, Compared with the Climate in Corresponding Parts of the Other Continent: To Which Are Added, Remarks on the Different Complexions of the Human Race : With Some Account of the Aborigines of America : Being an Introductory Discourse to the History of North-Carolina. Printed and sold by T. & J. Swords, 1811.