توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

United States. Census Office. 6th Census, 1840, & United States. National Archives and Records Service. (1974). 1840 Census schedules of mines, agriculture, commerce, and manufacturing for Massachusetts. National Archives.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

United States. Census Office. 6th Census, 1840, و United States. National Archives and Records Service. 1840 Census Schedules of Mines, Agriculture, Commerce, and Manufacturing for Massachusetts. Washington, D.C.: National Archives, 1974.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

United States. Census Office. 6th Census, 1840, و United States. National Archives and Records Service. 1840 Census Schedules of Mines, Agriculture, Commerce, and Manufacturing for Massachusetts. National Archives, 1974.