MLA
McGill, Snuffy. International Brotherhood of Sleeping Car Porters Convention, Detroit, Michigan, September 1948. 1948. Stuart A. Rose Manuscript, Archives, and Rare Book Library, OP119. https://digital.library.emory.edu/purl/467jq2bvr1-cor.
APA, 6th edition
McGill, S. (1948). International Brotherhood of Sleeping Car Porters Convention, Detroit, Michigan, September 1948 (OP119) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/467jq2bvr1-cor.
Chicago
McGill, Snuffy. “International Brotherhood of Sleeping Car Porters Convention, Detroit, Michigan, September 1948.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, 1948. OP119. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/467jq2bvr1-cor.