MLA
Williams, Charles H. The Last Tour of Duty at the Siege of Charleston. N.B. Williams & Co., 1882. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/945cc2fvnw-cor.
APA, 6th edition
Williams, C. H. (1882). The last tour of duty at the siege of Charleston. N.B. Williams & Co.; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/945cc2fvnw-cor.
Chicago
Williams, Charles H. “The Last Tour of Duty at the Siege of Charleston.” Regimental Histories. Providence: N.B. Williams & Co., 1882. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/945cc2fvnw-cor.