MLA
C. T. American Art (Chicago, Ill.). Cotton harvest : an African American man standing behind a pile of cotton with his hand on a high box wagon in a cotton field with another African American man dumping cotton into the wagon [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/941zcrjdk4-cor.
APA, 6th edition
C. T. American Art (Chicago, Ill.). (unknown)[Cotton harvest : an African American man standing behind a pile of cotton with his hand on a high box wagon in a cotton field with another African American man dumping cotton into the wagon [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/941zcrjdk4-cor.
Chicago
C. T. American Art (Chicago, Ill.), Cotton harvest : an African American man standing behind a pile of cotton with his hand on a high box wagon in a cotton field with another African American man dumping cotton into the wagon [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/941zcrjdk4-cor.