MLA
A. Cheyney and George Cheyney, Sitting on Steps at Cheyney Institute. 1903. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 10. https://digital.library.emory.edu/purl/368kd51cbx-cor.
APA, 6th edition
A. Cheyney and George Cheyney, sitting on steps at Cheyney Institute (Box 10). (1903). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/368kd51cbx-cor.
Chicago
“A. Cheyney and George Cheyney, Sitting on Steps at Cheyney Institute.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, 1903. Box 10. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/368kd51cbx-cor.