MLA
Men Operating a Digging Machine on a Dirt Road. 1910. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 71. https://digital.library.emory.edu/purl/706g1jwszp-cor.
APA, 6th edition
Men operating a digging machine on a dirt road (Box 71). (1910). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/706g1jwszp-cor.
Chicago
“Men Operating a Digging Machine on a Dirt Road.” Photographic postcards. Robert Langmuir African American Photograph Collection, 1910. Box 71. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/706g1jwszp-cor.