MLA
Rear of President Roosevelt's Train and Part of Train Crew. 1903. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 31. https://digital.library.emory.edu/purl/8021c5b01s-cor.
APA, 6th edition
Rear of President Roosevelt's train and part of train crew (Box 31). (1903). [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8021c5b01s-cor.
Chicago
“Rear of President Roosevelt's Train and Part of Train Crew.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, 1903. Box 31. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8021c5b01s-cor.