MLA
Two Sets of African American Twins in Suits and Hats Posing with an African American Woman Wearing a Dress. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/68605qftwh-cor.
APA, 6th edition
Two sets of African American twins in suits and hats posing with an African American woman wearing a dress (Box 72). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/68605qftwh-cor.
Chicago
“Two Sets of African American Twins in Suits and Hats Posing with an African American Woman Wearing a Dress.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 72. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/68605qftwh-cor.