MLA
Two Lines of African American Men Wearing Each Carrying a Cinder Block with Trees and Two Barns in the Background. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 54. https://digital.library.emory.edu/purl/774qjq2c28-cor.
APA, 6th edition
Two lines of African American men wearing each carrying a cinder block with trees and two barns in the background (Box 54). [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/774qjq2c28-cor.
Chicago
“Two Lines of African American Men Wearing Each Carrying a Cinder Block with Trees and Two Barns in the Background.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 54. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/774qjq2c28-cor.