MLA
Men Unloading Bananas from a Cargo Ship to Refrigerator Cars in New Orleans, Louisiana, Using Conveyor Belts. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 68. https://digital.library.emory.edu/purl/337vmcvdrm-cor.
APA, 6th edition
Men unloading bananas from a cargo ship to refrigerator cars in New Orleans, Louisiana, using conveyor belts (Box 68). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/337vmcvdrm-cor.
Chicago
“Men Unloading Bananas from a Cargo Ship to Refrigerator Cars in New Orleans, Louisiana, Using Conveyor Belts.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 68. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/337vmcvdrm-cor.