MLA
Our Gang Watermelon Party : Three Children Standing up to an African American Child with a Knife and Watermelons. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 64. https://digital.library.emory.edu/purl/85370rxwhj-cor.
APA, 6th edition
Our gang watermelon party : three children standing up to an African American child with a knife and watermelons (Box 64). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/85370rxwhj-cor.
Chicago
“Our Gang Watermelon Party : Three Children Standing up to an African American Child with a Knife and Watermelons.” 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/85370rxwhj-cor.