توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Hurd, J. C. (1881). The theory of our national existence: As shown by the action of the government of the United States since 1861. Little, Brown, and Company.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Hurd, John C. The Theory of Our National Existence: As Shown by the Action of the Government of the United States Since 1861. Boston: Little, Brown, and Company, 1881.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Hurd, John C. The Theory of Our National Existence: As Shown by the Action of the Government of the United States Since 1861. Little, Brown, and Company, 1881.