MLA
Wofford, William T. Letter from William T. Wofford (Manassas, Georgia) to John Hardin, Inquiring about His Health after Having Been Wounded in Battle - 1862 (Photocopy). 1862. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 7, Folder 39. https://digital.library.emory.edu/purl/0687h44k1b-cor.
APA, 6th edition
Wofford, W. T. (1862). Letter from William T. Wofford (Manassas, Georgia) to John Hardin, inquiring about his health after having been wounded in battle - 1862 (photocopy) (Box 7, Folder 39) [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0687h44k1b-cor.
Chicago
Wofford, William T. “Letter from William T. Wofford (Manassas, Georgia) to John Hardin, Inquiring about His Health after Having Been Wounded in Battle - 1862 (Photocopy).” Letters (correspondence). Civil War Collection, 1862. Box 7, Folder 39. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0687h44k1b-cor.