MLA
Major Taylor Helping a Man Riding a Bicycle on a Race Track. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 74. https://digital.library.emory.edu/purl/334fn2z372-cor.
APA, 6th edition
Major Taylor helping a man riding a bicycle on a race track (Box 74). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/334fn2z372-cor.
Chicago
“Major Taylor Helping a Man Riding a Bicycle on a Race Track.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 74. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/334fn2z372-cor.