Davies, C., Adams, J. Q., & Herschel, J. F. W. (1871). The metric system: Considered with reference to its introduction into the United States; embracing the reports of the Hon. John Quincy Adams, and the lecture of Sir John Herschel. A. S. Barnes and Company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Davies, Charles, John Quincy Adams, و John F. W. Herschel. The Metric System: Considered with Reference to Its Introduction into the United States; Embracing the Reports of the Hon. John Quincy Adams, and the Lecture of Sir John Herschel. New York, Chicago: A. S. Barnes and Company, 1871.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Davies, Charles, et al. The Metric System: Considered with Reference to Its Introduction into the United States; Embracing the Reports of the Hon. John Quincy Adams, and the Lecture of Sir John Herschel. A. S. Barnes and Company, 1871.