MLA
Said, Nicholas, 1836-1882. The autobiography of Nicholas Said : a native of Bornou, Eastern Soudan, Central Africa.. 1873. African American Imprints Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/600ns1rqgs-cor.
APA, 6th edition
Said, Nicholas, 1836-1882. (1873)[The autobiography of Nicholas Said : a native of Bornou, Eastern Soudan, Central Africa.]. African American Imprints Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/600ns1rqgs-cor.
Chicago
Said, Nicholas, 1836-1882, The autobiography of Nicholas Said : a native of Bornou, Eastern Soudan, Central Africa., 1873, African American Imprints Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/600ns1rqgs-cor.