MLA
Confederate General Albert Sidney Johnston. 1861. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 16, Folder 39. https://digital.library.emory.edu/purl/221tdz099g-cor.
APA, 6th edition
Confederate general Albert Sidney Johnston (Box 16, Folder 39). (1861). [Cartes-de-visite (card photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/221tdz099g-cor.
Chicago
“Confederate General Albert Sidney Johnston.” Cartes-de-visite (card photographs). Civil War Collection, 1861. Box 16, Folder 39. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/221tdz099g-cor.