MLA
People on the Dock, with Barrels, Crates and Carts : with Several Boats in the Water. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 75. https://digital.library.emory.edu/purl/3720cfxpp9-cor.
APA, 6th edition
People on the dock, with barrels, crates and carts : with several boats in the water (Box 75). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3720cfxpp9-cor.
Chicago
“People on the Dock, with Barrels, Crates and Carts : with Several Boats in the Water.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 75. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3720cfxpp9-cor.