MLA
Williams, Sidney S., 1837-. From Spottsylvania [sic] to Wilmington, N.C. by way of Andersonville and Florence. 1899. Regimental Histories. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/344pk0p65w-cor.
APA, 6th edition
Williams, Sidney S., 1837-. (1899)[From Spottsylvania [sic] to Wilmington, N.C. by way of Andersonville and Florence]. Regimental Histories, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/344pk0p65w-cor.
Chicago
Williams, Sidney S., 1837-, From Spottsylvania [sic] to Wilmington, N.C. by way of Andersonville and Florence, 1899, Regimental Histories, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/344pk0p65w-cor.