MLA
Applewhite, Robert. Letter from Robert Applewhite (Macon County, Alabama) to Josiah Perkins - October 29, 1849 (Photocopy). 1849. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 4, Folder 50. https://digital.library.emory.edu/purl/81289320fr-cor.
APA, 6th edition
Applewhite, R. (1849). Letter from Robert Applewhite (Macon County, Alabama) to Josiah Perkins - October 29, 1849 (photocopy) (Box 4, Folder 50) [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/81289320fr-cor.
Chicago
Applewhite, Robert. “Letter from Robert Applewhite (Macon County, Alabama) to Josiah Perkins - October 29, 1849 (Photocopy).” Letters (correspondence). Civil War Collection, 1849. Box 4, Folder 50. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/81289320fr-cor.