MLA
Woody, Green B. Letter by Green B. Woody (Clinton, Mississippi) to His Wife. Woody Served in Company C of the 58th North Carolina Infantry Regiment - May 3, 1863[?]. 1863. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 7, Folder 41. https://digital.library.emory.edu/purl/453wstqkpp-cor.
APA, 6th edition
Woody, G. B. (1863). Letter by Green B. Woody (Clinton, Mississippi) to his wife. Woody served in Company C of the 58th North Carolina Infantry Regiment - May 3, 1863[?] (Box 7, Folder 41) [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/453wstqkpp-cor.
Chicago
Woody, Green B. “Letter by Green B. Woody (Clinton, Mississippi) to His Wife. Woody Served in Company C of the 58th North Carolina Infantry Regiment - May 3, 1863[?].” Letters (correspondence). Civil War Collection, 1863. Box 7, Folder 41. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/453wstqkpp-cor.