MLA
Elliott, Stephen, 1806-1866. Ezra's dilemna [sic] : a sermon preached in Christ Church, Savannah, on Friday, August 21st, 1863, being the day of humiliation, fasting and prayer, appointed by the President of the Confederate States. 1863. Civil War Imprints. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/020fttf25p-cor.
APA, 6th edition
Elliott, Stephen, 1806-1866. (1863)[Ezra's dilemna [sic] : a sermon preached in Christ Church, Savannah, on Friday, August 21st, 1863, being the day of humiliation, fasting and prayer, appointed by the President of the Confederate States]. Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/020fttf25p-cor.
Chicago
Elliott, Stephen, 1806-1866, Ezra's dilemna [sic] : a sermon preached in Christ Church, Savannah, on Friday, August 21st, 1863, being the day of humiliation, fasting and prayer, appointed by the President of the Confederate States, 1863, Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/020fttf25p-cor.