MLA
Road Making, Green Ridge Valley, Maryland. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 71. https://digital.library.emory.edu/purl/641mgqnkdw-cor.
APA, 6th edition
Road making, Green Ridge Valley, Maryland (Box 71). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/641mgqnkdw-cor.
Chicago
“Road Making, Green Ridge Valley, Maryland.” 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/641mgqnkdw-cor.