MLA
Men in Hats with Instruments in Front of Building's Porch. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 24. https://digital.library.emory.edu/purl/825x69p8hv-cor.
APA, 6th edition
Men in hats with instruments in front of building's porch (Box 24). [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/825x69p8hv-cor.
Chicago
“Men in Hats with Instruments in Front of Building's Porch.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 24. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/825x69p8hv-cor.