MLA
Three Men Wearing Hats, One Wearing a Vest, One Holding a Rifle Carrying a Knife in a Sheath with a Pipe in His Mouth, Standing next to a Truck on a Dirt Road with a Tarp Covering Its Load. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 32. https://digital.library.emory.edu/purl/13331zcrpp-cor.
APA, 6th edition
Three men wearing hats, one wearing a vest, one holding a rifle carrying a knife in a sheath with a pipe in his mouth, standing next to a truck on a dirt road with a tarp covering its load (Box 32). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/13331zcrpp-cor.
Chicago
“Three Men Wearing Hats, One Wearing a Vest, One Holding a Rifle Carrying a Knife in a Sheath with a Pipe in His Mouth, Standing next to a Truck on a Dirt Road with a Tarp Covering Its Load.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 32. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/13331zcrpp-cor.