United States. Census Office. 6th Census, 1840, & United States. National Archives and Records Service. (1973). Schedule of mines, agriculture, commerce, manufactures, etc. of 1840 census for Illinois. National Archives.
Stile di citazione ChicagoUnited States. Census Office. 6th Census, 1840, e United States. National Archives and Records Service. Schedule of Mines, Agriculture, Commerce, Manufactures, Etc. of 1840 Census for Illinois. Washington, D.C.: National Archives, 1973.
Citazione MLAUnited States. Census Office. 6th Census, 1840, e United States. National Archives and Records Service. Schedule of Mines, Agriculture, Commerce, Manufactures, Etc. of 1840 Census for Illinois. National Archives, 1973.
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