MLA
Moffitt, Zeno. Letter from Zeno Moffitt (Camp near Weldon, North Carolina), to His Family. Zeno Moffitt Served in Company F of the 24th North Carolina Infantry Regiment - May 6, ﾠ1864. 1864. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 5, Folder 25. https://digital.library.emory.edu/purl/1504xgxf2q-cor.
APA, 6th edition
Moffitt, Z. (1864). Letter from Zeno Moffitt (Camp near Weldon, North Carolina), to his family. Zeno Moffitt served in Company F of the 24th North Carolina Infantry Regiment - May 6, ﾠ1864 (Box 5, Folder 25) [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/1504xgxf2q-cor.
Chicago
Moffitt, Zeno. “Letter from Zeno Moffitt (Camp near Weldon, North Carolina), to His Family. Zeno Moffitt Served in Company F of the 24th North Carolina Infantry Regiment - May 6, ﾠ1864.” Letters (correspondence). Civil War Collection, 1864. Box 5, Folder 25. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/1504xgxf2q-cor.