MLA
Singley, B. L. (Benjamin Lloyd). Bird's-eye view of Union Stock Yards, Chicago, Ill., U.S.A.. 1897 approx.. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/501pg4f4vd-cor.
APA, 6th edition
Singley, B. L. (Benjamin Lloyd). (1897 approx.)[Bird's-eye view of Union Stock Yards, Chicago, Ill., U.S.A.]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/501pg4f4vd-cor.
Chicago
Singley, B. L. (Benjamin Lloyd), Bird's-eye view of Union Stock Yards, Chicago, Ill., U.S.A., 1897 approx., Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/501pg4f4vd-cor.