MLA
Two Men by Large Stacks of Hogshead Heads, or Barrel Bottoms. 1939. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 2. https://digital.library.emory.edu/purl/6149p8czgg-cor.
APA, 6th edition
Two men by large stacks of hogshead heads, or barrel bottoms (Box 2). (1939). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6149p8czgg-cor.
Chicago
“Two Men by Large Stacks of Hogshead Heads, or Barrel Bottoms.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, 1939. Box 2. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6149p8czgg-cor.