Illinois State Archives & United States. Census Office. 7th census, 1850. (1850). [Seventh census of the United States, 1850.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIllinois State Archives और 1850 United States. Census Office. 7th census. [Seventh Census of the United States, 1850. 1850.
एमएलए (8वां संस्करण) प्रशस्ति पत्रIllinois State Archives और 1850 United States. Census Office. 7th census. [Seventh Census of the United States, 1850. 1850.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.