MLA
Our Gang Watermelon Party : Four Children Cutting a Watermelon. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 64. https://digital.library.emory.edu/purl/856n02v70w-cor.
APA, 6th edition
Our gang watermelon party : four children cutting a watermelon (Box 64). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/856n02v70w-cor.
Chicago
“Our Gang Watermelon Party : Four Children Cutting a Watermelon.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 64. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/856n02v70w-cor.