MLA
Wheeler, Joseph, 1836-1906. A revised system of cavalry tactics : for the use of the cavalry and mounted infantry, C.S.A.. 1863. Civil War Imprints. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/713905qkcr-cor.
APA, 6th edition
Wheeler, Joseph, 1836-1906. (1863)[A revised system of cavalry tactics : for the use of the cavalry and mounted infantry, C.S.A.]. Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/713905qkcr-cor.
Chicago
Wheeler, Joseph, 1836-1906, A revised system of cavalry tactics : for the use of the cavalry and mounted infantry, C.S.A., 1863, Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/713905qkcr-cor.