MLA
Macduff, John R. (John Ross), 1818-1895. The soldiers' text-book, or, Confidence in time of war. XXXX. Civil War Imprints. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/9354f4qvsd-cor.
APA, 6th edition
Macduff, John R. (John Ross), 1818-1895. (XXXX)[The soldiers' text-book, or, Confidence in time of war]. Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/9354f4qvsd-cor.
Chicago
Macduff, John R. (John Ross), 1818-1895, The soldiers' text-book, or, Confidence in time of war, XXXX, Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/9354f4qvsd-cor.