MLA
Union Admiral David Dixon Porter. 1861. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 22, Folder 67. https://digital.library.emory.edu/purl/0580k6dknw-cor.
APA, 6th edition
Union admiral David Dixon Porter (Box 22, Folder 67). (1861). [Engravings (prints)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0580k6dknw-cor.
Chicago
“Union Admiral David Dixon Porter.” Engravings (prints). Civil War Collection, 1861. Box 22, Folder 67. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0580k6dknw-cor.