MLA
Two African American Girl Twins Wearing Matching Outfits. 1927. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/839k3j9kgm-cor.
APA, 6th edition
Two African American girl twins wearing matching outfits (Box 72). (1927). [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/839k3j9kgm-cor.
Chicago
“Two African American Girl Twins Wearing Matching Outfits.” Postcards. Robert Langmuir African American Photograph Collection, 1927. Box 72. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/839k3j9kgm-cor.