Malte-Brun, C., Percival, J. G., & Huot, J. (1847). A system of universal geography: Or, A description of all the parts of the world, on a new plan, according to the great natural divisions of the globe : accompanied with analytical, synoptical, and elementary tables. S. Walker.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Malte-Brun, Conrad, James Gates Percival, و J.-J.-N Huot. A System of Universal Geography: Or, A Description of All the Parts of the World, on a New Plan, According to the Great Natural Divisions of the Globe : Accompanied with Analytical, Synoptical, and Elementary Tables. Boston: S. Walker, 1847.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Malte-Brun, Conrad, et al. A System of Universal Geography: Or, A Description of All the Parts of the World, on a New Plan, According to the Great Natural Divisions of the Globe : Accompanied with Analytical, Synoptical, and Elementary Tables. S. Walker, 1847.