APA (7th ed.) Citation

Ham, D. N. (1973). List of free Black heads of families in the first census of the United States, 1790. National Archives and Records Service.

Chicago Style (17th ed.) Citation

Ham, Debra Newman. List of Free Black Heads of Families in the First Census of the United States, 1790. Washington: National Archives and Records Service, 1973.

MLA (8th ed.) Citation

Ham, Debra Newman. List of Free Black Heads of Families in the First Census of the United States, 1790. National Archives and Records Service, 1973.