MLA
MacFarlane, W. G. (William Godsoe), 1870-1942. Seventy summers in the cotton fields : an elderly African American man and woman working in a cotton field [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/180vq83bp1-cor.
APA, 6th edition
MacFarlane, W. G. (William Godsoe), 1870-1942. (unknown)[Seventy summers in the cotton fields : an elderly African American man and woman working in a cotton field [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/180vq83bp1-cor.
Chicago
MacFarlane, W. G. (William Godsoe), 1870-1942, Seventy summers in the cotton fields : an elderly African American man and woman working in a cotton field [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/180vq83bp1-cor.