MLA
Cross, Joseph, 1813-1893. Camp and field : papers from the portfolio of an army chaplain. 1864. Civil War Imprints. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/713905qk2n-cor.
APA, 6th edition
Cross, Joseph, 1813-1893. (1864)[Camp and field : papers from the portfolio of an army chaplain]. Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/713905qk2n-cor.
Chicago
Cross, Joseph, 1813-1893, Camp and field : papers from the portfolio of an army chaplain, 1864, Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/713905qk2n-cor.