MLA
Galleries, Brady's National Photographic Portrait. Union Admiral David Dixon Porter. E. and H. T. Anthony, 1861. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 22, Folder 38. https://digital.library.emory.edu/purl/617qnk9b17-cor.
APA, 6th edition
Galleries, B. N. P. P. (1861). Union admiral David Dixon Porter (Box 22, Folder 38) [Cartes-de-visite (card photographs)]. E. and H. T. Anthony; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/617qnk9b17-cor.
Chicago
Galleries, Brady's National Photographic Portrait. “Union Admiral David Dixon Porter.” Cartes-de-visite (card photographs). Civil War Collection. E. and H. T. Anthony, 1861. Box 22, Folder 38. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/617qnk9b17-cor.