MLA
Smith, N. P. Man Posing with Two Young Women. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 12. https://digital.library.emory.edu/purl/3483j9kd9v-cor.
APA, 6th edition
Smith, N. P. Man posing with two young women (Box 12) [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3483j9kd9v-cor.
Chicago
Smith, N. P. “Man Posing with Two Young Women.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 12. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3483j9kd9v-cor.