MLA
Finley, H. M. An African American Boy Sitting on a Stone Wall Holding a Shoe Shine Brush in His Hands and More Brushes on the Ground below His Feet. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 63. https://digital.library.emory.edu/purl/941zcrjdk0-cor.
APA, 6th edition
Finley, H. M. An African American boy sitting on a stone wall holding a shoe shine brush in his hands and more brushes on the ground below his feet (Box 63) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/941zcrjdk0-cor.
Chicago
Finley, H. M. “An African American Boy Sitting on a Stone Wall Holding a Shoe Shine Brush in His Hands and More Brushes on the Ground below His Feet.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 63. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/941zcrjdk0-cor.