MLA
Children of Booker T. Washington, Portia and Her Baby Brother. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 14. https://digital.library.emory.edu/purl/7440rxwdj7-cor.
APA, 6th edition
Children of Booker T. Washington, Portia and her baby brother (Box 14). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7440rxwdj7-cor.
Chicago
“Children of Booker T. Washington, Portia and Her Baby Brother.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 14. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7440rxwdj7-cor.