MLA
Thomas, Robert S. Promissory Note for $50 from Robert S. Thomas to Pay Richard D. B. Taylor. Taylor Served in the 24th Georgia Infantry Regiment. 1863. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 6, Folder 46. https://digital.library.emory.edu/purl/658pc867jb-cor.
APA, 6th edition
Thomas, R. S. (1863). Promissory Note for $50 from Robert S. Thomas to pay Richard D. B. Taylor. Taylor served in the 24th Georgia Infantry Regiment (Box 6, Folder 46) [Financial records]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/658pc867jb-cor.
Chicago
Thomas, Robert S. “Promissory Note for $50 from Robert S. Thomas to Pay Richard D. B. Taylor. Taylor Served in the 24th Georgia Infantry Regiment.” Financial records. Civil War Collection, 1863. Box 6, Folder 46. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/658pc867jb-cor.