MLA
Dr. Robert Henry and Other Doctors on Stairs Outside of Building in Philadelphia, Pa. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 15. https://digital.library.emory.edu/purl/020fttdz5s-cor.
APA, 6th edition
Dr. Robert Henry and other doctors on stairs outside of building in Philadelphia, Pa. (Box 15). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/020fttdz5s-cor.
Chicago
“Dr. Robert Henry and Other Doctors on Stairs Outside of Building in Philadelphia, Pa.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 15. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/020fttdz5s-cor.