MLA
L. L. Cook Co. (Milwaukee, Wis.). African Americans loading sugar cane with machines [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/395w6m9097-cor.
APA, 6th edition
L. L. Cook Co. (Milwaukee, Wis.). (unknown)[African Americans loading sugar cane with machines [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/395w6m9097-cor.
Chicago
L. L. Cook Co. (Milwaukee, Wis.), African Americans loading sugar cane with machines [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/395w6m9097-cor.