MLA
Kanavel, George. Letter from George Kanavel (Jacinto, Mississippi) to His Brother, Henry. Kanavel Describes Conditions of His Encampment Located near Jacinto, Mississippi. Kanavel Served in the 80th Ohio Infantry Regiment, Company F - September 27, 1863 (Photocopy). 1863. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 19, Folder 41. https://digital.library.emory.edu/purl/617qnk9b0b-cor.
APA, 6th edition
Kanavel, G. (1863). Letter from George Kanavel (Jacinto, Mississippi) to his brother, Henry. Kanavel describes conditions of his encampment located near Jacinto, Mississippi. Kanavel served in the 80th Ohio Infantry Regiment, Company F - September 27, 1863 (photocopy) (Box 19, Folder 41) [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/617qnk9b0b-cor.
Chicago
Kanavel, George. “Letter from George Kanavel (Jacinto, Mississippi) to His Brother, Henry. Kanavel Describes Conditions of His Encampment Located near Jacinto, Mississippi. Kanavel Served in the 80th Ohio Infantry Regiment, Company F - September 27, 1863 (Photocopy).” Letters (correspondence). Civil War Collection, 1863. Box 19, Folder 41. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/617qnk9b0b-cor.