MLA
Portia Marshall Washington Pittman, Daughter of Booker T. Washington, Sitting by a Bouquet of Flowers. 1975. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 14. https://digital.library.emory.edu/purl/8708w9gj3w-cor.
APA, 6th edition
Portia Marshall Washington Pittman, daughter of Booker T. Washington, sitting by a bouquet of flowers (Box 14). (1975). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8708w9gj3w-cor.
Chicago
“Portia Marshall Washington Pittman, Daughter of Booker T. Washington, Sitting by a Bouquet of Flowers.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, 1975. Box 14. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8708w9gj3w-cor.