Illinois State Archives & United States. Census Office. 7th census, 1850. (1850). [Seventh census of the United States, 1850.
Čikaški stil citiranja (17. izdanje)Illinois State Archives i 1850 United States. Census Office. 7th census. [Seventh Census of the United States, 1850. 1850.
MLA način citiranja (8. izdanje)Illinois State Archives i 1850 United States. Census Office. 7th census. [Seventh Census of the United States, 1850. 1850.
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