MLA
Men, Women and Children Sitting on a Porch, and a Man with a Horse. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 12. https://digital.library.emory.edu/purl/044bnzs7px-cor.
APA, 6th edition
Men, women and children sitting on a porch, and a man with a horse (Box 12). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/044bnzs7px-cor.
Chicago
“Men, Women and Children Sitting on a Porch, and a Man with a Horse.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 12. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/044bnzs7px-cor.