MLA
Tucker, Henry H. (Henry Holcombe), 1819-1889. God in the war : a sermon delivered before the legislature of Georgia, in the capitol at Milledgeville, on Friday, November 15, 1861, being a day set apart for fasting, humiliation and prayer, by his excellency the president of the Confederate States. 1861. Civil War Imprints. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/904dncjx5d-cor.
APA, 6th edition
Tucker, Henry H. (Henry Holcombe), 1819-1889. (1861)[God in the war : a sermon delivered before the legislature of Georgia, in the capitol at Milledgeville, on Friday, November 15, 1861, being a day set apart for fasting, humiliation and prayer, by his excellency the president of the Confederate States]. Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/904dncjx5d-cor.
Chicago
Tucker, Henry H. (Henry Holcombe), 1819-1889, God in the war : a sermon delivered before the legislature of Georgia, in the capitol at Milledgeville, on Friday, November 15, 1861, being a day set apart for fasting, humiliation and prayer, by his excellency the president of the Confederate States, 1861, Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/904dncjx5d-cor.