MLA
Man on a Parade Float with a Windmill, Being Pulled by a Horse. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 1. https://digital.library.emory.edu/purl/1676t1g1q4-cor.
APA, 6th edition
Man on a parade float with a windmill, being pulled by a horse (Box 1). [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/1676t1g1q4-cor.
Chicago
“Man on a Parade Float with a Windmill, Being Pulled by a Horse.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 1. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/1676t1g1q4-cor.