توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

United States. Bureau of the Census & United States. National Archives and Records Administration. (1990). 14th census of population, 1920. National Archives and Records Administration ; Available from Scholarly Resources Inc..

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

United States. Bureau of the Census و United States. National Archives and Records Administration. 14th Census of Population, 1920. Washington : Wilmington, DE: National Archives and Records Administration ; Available from Scholarly Resources Inc., 1990.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

United States. Bureau of the Census و United States. National Archives and Records Administration. 14th Census of Population, 1920. National Archives and Records Administration ; Available from Scholarly Resources Inc., 1990.