MLA
Doggett, D. S. (David Seth), 1810-1880. A nation's Ebenezer : a discourse delivered in the Broad St. Methodist Church, Richmond, Virginia, Thursday, September 18, 1862 : the day of public thanksgiving, appointed by the President of the Confederate States. 1862. Civil War Imprints. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/549g4f4v0t-cor.
APA, 6th edition
Doggett, D. S. (David Seth), 1810-1880. (1862)[A nation's Ebenezer : a discourse delivered in the Broad St. Methodist Church, Richmond, Virginia, Thursday, September 18, 1862 : the day of public thanksgiving, 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/549g4f4v0t-cor.
Chicago
Doggett, D. S. (David Seth), 1810-1880, A nation's Ebenezer : a discourse delivered in the Broad St. Methodist Church, Richmond, Virginia, Thursday, September 18, 1862 : the day of public thanksgiving, appointed by the President of the Confederate States, 1862, Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/549g4f4v0t-cor.