MLA
Palmer, B. M. (Benjamin Morgan), 1818-1902. Oath of allegiance.. 1863. Civil War Imprints. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/38279cnsbc-cor.
APA, 6th edition
Palmer, B. M. (Benjamin Morgan), 1818-1902. (1863)[Oath of allegiance.]. Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/38279cnsbc-cor.
Chicago
Palmer, B. M. (Benjamin Morgan), 1818-1902, Oath of allegiance., 1863, Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/38279cnsbc-cor.