MLA
Roma. African American Girl Holding Hands with an African American Boy Dressed as a Sailor. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/8945qftth8-cor.
APA, 6th edition
R. African American girl holding hands with an African American boy dressed as a sailor (Box 72) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8945qftth8-cor.
Chicago
Roma. “African American Girl Holding Hands with an African American Boy Dressed as a Sailor.” 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/8945qftth8-cor.