MLA
Group Portrait of Confederate General Robert Edward Lee, General George Washington Custis Lee, and His Adjutant General, Lieutenant Colonel Walter H. Taylor. E. and H. T. Anthony, 1865. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 17, Folder 40. https://digital.library.emory.edu/purl/569z08kqwn-cor.
APA, 6th edition
Group portrait of Confederate general Robert Edward Lee, general George Washington Custis Lee, and his adjutant general, Lieutenant Colonel Walter H. Taylor (Box 17, Folder 40). (1865). [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/569z08kqwn-cor.
Chicago
“Group Portrait of Confederate General Robert Edward Lee, General George Washington Custis Lee, and His Adjutant General, Lieutenant Colonel Walter H. Taylor.” Cartes-de-visite (card photographs). Civil War Collection. E. and H. T. Anthony, 1865. Box 17, Folder 40. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/569z08kqwn-cor.