Informazioni sulla fonte
Ancestry.com. Twelve Years a Slave [database online]. Provo, UT: Ancestry.com Operations Inc, 2005.Dati originali: Northup, Solomon,. Twelve years a slave : narrative of Solomon Northup, citizen of New-York, kidnapped in Washington City in 1841 and rescued in 1853 from a cotton plantation near the Red River, in Louisiana.. Auburn: Derby and Miller, 1853.
