MLA
Hook, R. W. Men Watching an African American Man Pouring Something into a Jug. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 64. https://digital.library.emory.edu/purl/044bnzs7m1-cor.
APA, 6th edition
Hook, R. W. Men watching an African American man pouring something into a jug (Box 64) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/044bnzs7m1-cor.
Chicago
Hook, R. W. “Men Watching an African American Man Pouring Something into a Jug.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 64. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/044bnzs7m1-cor.