MLA
Group Shot of Nicely Dressed Men and Women, Some Sitting. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 13. https://digital.library.emory.edu/purl/494vhhmgx8-cor.
APA, 6th edition
Group shot of nicely dressed men and women, some sitting (Box 13). [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/494vhhmgx8-cor.
Chicago
“Group Shot of Nicely Dressed Men and Women, Some Sitting.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 13. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/494vhhmgx8-cor.