MLA
Randall, James Ryder, 1839-1908. Letter from James Ryder Randall (Baltimore, Maryland) to Charles Randall [Augusta, Georgia?], regarding business prospects - September 22, 1865. September 22, 1865. Civil War Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/235gb5mmnh-cor.
APA, 6th edition
Randall, James Ryder, 1839-1908. (September 22, 1865)[Letter from James Ryder Randall (Baltimore, Maryland) to Charles Randall [Augusta, Georgia?], regarding business prospects - September 22, 1865]. Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/235gb5mmnh-cor.
Chicago
Randall, James Ryder, 1839-1908, Letter from James Ryder Randall (Baltimore, Maryland) to Charles Randall [Augusta, Georgia?], regarding business prospects - September 22, 1865, September 22, 1865, Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/235gb5mmnh-cor.