MLA
Skerrett, R. G. Drawing of the CSS Atlanta, a Casemate Ironclad Warship That Was Convered from a British-Built Blockade Runner Fingal in 1862. The Atlanta Served in the Confederate Navy and Later the Union Navy after It Was Captured in 1863. 1901. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 17, Folder 41. https://digital.library.emory.edu/purl/4472v6wxt2-cor.
APA, 6th edition
Skerrett, R. G. (1901). Drawing of the CSS Atlanta, a casemate ironclad warship that was convered from a British-built blockade runner Fingal in 1862. The Atlanta served in the Confederate Navy and later the Union Navy after it was captured in 1863 (Box 17, Folder 41) [Drawings (visual works)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4472v6wxt2-cor.
Chicago
Skerrett, R. G. “Drawing of the CSS Atlanta, a Casemate Ironclad Warship That Was Convered from a British-Built Blockade Runner Fingal in 1862. The Atlanta Served in the Confederate Navy and Later the Union Navy after It Was Captured in 1863.” Drawings (visual works). Civil War Collection, 1901. Box 17, Folder 41. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4472v6wxt2-cor.