MLA
Finley, I. R. (I. Randolph). The Lord reigneth : a sermon preached in Lloyd's Church, Sussex County, Va., Sunday, August 16, 1863. 1863. Civil War Imprints. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3720cfxsrz-cor.
APA, 6th edition
Finley, I. R. (I. Randolph). (1863)[The Lord reigneth : a sermon preached in Lloyd's Church, Sussex County, Va., Sunday, August 16, 1863]. Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3720cfxsrz-cor.
Chicago
Finley, I. R. (I. Randolph), The Lord reigneth : a sermon preached in Lloyd's Church, Sussex County, Va., Sunday, August 16, 1863, 1863, Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3720cfxsrz-cor.