MLA
Men Sitting in Chairs in Front of a Building, Holding a Dog with Men and Women Standing behind Them. 1903. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 30. https://digital.library.emory.edu/purl/6214mw6mdx-cor.
APA, 6th edition
Men sitting in chairs in front of a building, holding a dog with men and women standing behind them (Box 30). (1903). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6214mw6mdx-cor.
Chicago
“Men Sitting in Chairs in Front of a Building, Holding a Dog with Men and Women Standing behind Them.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, 1903. Box 30. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6214mw6mdx-cor.