MLA
Rochester Photo Press (N.Y.). You look good to me : an African American baby in a diaper holding a toy duck. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/221tdz08p5-cor.
APA, 6th edition
Rochester Photo Press (N.Y.). (unknown)[You look good to me : an African American baby in a diaper holding a toy duck]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/221tdz08p5-cor.
Chicago
Rochester Photo Press (N.Y.), You look good to me : an African American baby in a diaper holding a toy duck, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/221tdz08p5-cor.