MLA
Palmer, B. M. (Benjamin Morgan), 1818-1902. National responsibility before God : a discourse, delivered on the day of fasting, humiliation and prayer, appointed by the president of the Confederate States of America, June 13, 1861. 1861. Civil War Imprints. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7032280kj4-cor.
APA, 6th edition
Palmer, B. M. (Benjamin Morgan), 1818-1902. (1861)[National responsibility before God : a discourse, delivered on the day of fasting, humiliation and prayer, appointed by the president of the Confederate States of America, June 13, 1861]. Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7032280kj4-cor.
Chicago
Palmer, B. M. (Benjamin Morgan), 1818-1902, National responsibility before God : a discourse, delivered on the day of fasting, humiliation and prayer, appointed by the president of the Confederate States of America, June 13, 1861, 1861, Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7032280kj4-cor.