MLA
Manahan, Thomas, 1827 or 1828-, Root, George F. (George Frederick), 1820-1895. Brother Tell Me of the Battle. 1864. Civil War Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/706g1jwv3n-cor.
APA, 6th edition
Manahan, Thomas, 1827 or 1828-, & Root, George F. (George Frederick), 1820-1895. (1864)[Brother Tell Me of the Battle]. Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/706g1jwv3n-cor.
Chicago
Manahan, Thomas, 1827 or 1828-, Root, George F. (George Frederick), 1820-1895, Brother Tell Me of the Battle, 1864, Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/706g1jwv3n-cor.