MLA
African American Man Driving a Horse-Drawn Cart Full of Children Waving American Flags. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 71. https://digital.library.emory.edu/purl/549g4f4qw6-cor.
APA, 6th edition
African American man driving a horse-drawn cart full of children waving American flags (Box 71). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/549g4f4qw6-cor.
Chicago
“African American Man Driving a Horse-Drawn Cart Full of Children Waving American Flags.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 71. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/549g4f4qw6-cor.