MLA
Dorsey, Jane. Letter from Jane Dorsey (New Manchester, Georgia) to Husband, John Dorsey - August 24, 1862 (Typescript). 1862. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 3, Folder 8. https://digital.library.emory.edu/purl/3720cfxqng-cor.
APA, 6th edition
Dorsey, J. (1862). Letter from Jane Dorsey (New Manchester, Georgia) to husband, John Dorsey - August 24, 1862 (typescript) (Box 3, Folder 8) [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3720cfxqng-cor.
Chicago
Dorsey, Jane. “Letter from Jane Dorsey (New Manchester, Georgia) to Husband, John Dorsey - August 24, 1862 (Typescript).” Letters (correspondence). Civil War Collection, 1862. Box 3, Folder 8. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3720cfxqng-cor.