MLA
Company K, Fourteenth South Carolina Volunteers. Observer Print. and Pub. House, 1897. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/924wh70wm6-cor.
APA, 6th edition
Company K, Fourteenth South Carolina Volunteers. (1897). [Regimental histories.]. Observer Print. and Pub. House; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/924wh70wm6-cor.
Chicago
“Company K, Fourteenth South Carolina Volunteers.” Regimental histories. Regimental Histories. Charlotte, N.C.: Observer Print. and Pub. House, 1897. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/924wh70wm6-cor.