MLA
McQuaid, Louis. Circus Side Show Called Darkest Africa, Strange People from Africa. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 7. https://digital.library.emory.edu/purl/887brv15m8-cor.
APA, 6th edition
McQuaid, L. Circus side show called Darkest Africa, Strange People from Africa (Box 7) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/887brv15m8-cor.
Chicago
McQuaid, Louis. “Circus Side Show Called Darkest Africa, Strange People from Africa.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 7. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/887brv15m8-cor.