MLA
Rhodes, John H. The Gettysburg Gun. Published by the Society, 1892. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/163stqjv53-cor.
APA, 6th edition
Rhodes, J. H. (1892). The Gettysburg gun. Published by the Society; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/163stqjv53-cor.
Chicago
Rhodes, John H. “The Gettysburg Gun.” Regimental Histories. Providence: Published by the Society, 1892. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/163stqjv53-cor.