MLA
Man Picking Cotton. 1900. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 1. https://digital.library.emory.edu/purl/764gmsbcj0-cor.
APA, 6th edition
Man picking cotton (Box 1). (1900). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/764gmsbcj0-cor.
Chicago
“Man Picking Cotton.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, 1900. Box 1. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/764gmsbcj0-cor.