MLA
Turner, A. A. (Austin Augustus), approximately 1831-1866. Union general Ambrose Burnside. 1861?/1880?. Civil War Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/883xsj3w4f-cor.
APA, 6th edition
Turner, A. A. (Austin Augustus), approximately 1831-1866. (1861?/1880?)[Union general Ambrose Burnside]. Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/883xsj3w4f-cor.
Chicago
Turner, A. A. (Austin Augustus), approximately 1831-1866, Union general Ambrose Burnside, 1861?/1880?, Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/883xsj3w4f-cor.