MLA
An African American Man Dressed as a Sailor Standing with His Arm around the Shoulder of an African American Woman Dressed in a Graduation Cap and Gown in Front of a Photo Backdrop of a Lagoon with a Full Moon. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 8. https://digital.library.emory.edu/purl/436tx95xcm-cor.
APA, 6th edition
An African American man dressed as a sailor standing with his arm around the shoulder of an African American woman dressed in a graduation cap and gown in front of a photo backdrop of a lagoon with a full moon (Box 8). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/436tx95xcm-cor.
Chicago
“An African American Man Dressed as a Sailor Standing with His Arm around the Shoulder of an African American Woman Dressed in a Graduation Cap and Gown in Front of a Photo Backdrop of a Lagoon with a Full Moon.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 8. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/436tx95xcm-cor.