MLA
M W M (Aurora, Mo.). Weighing cotton in the field : Texas, the lone star state [hand colored]. April 24, 1949. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/518rbnzsc6-cor.
APA, 6th edition
M W M (Aurora, Mo.). (April 24, 1949)[Weighing cotton in the field : Texas, the lone star state [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/518rbnzsc6-cor.
Chicago
M W M (Aurora, Mo.), Weighing cotton in the field : Texas, the lone star state [hand colored], April 24, 1949, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/518rbnzsc6-cor.