MLA
A Group of Men, in Suits, Some Holding Instruments, Two Guitars and One Banjo. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 53. https://digital.library.emory.edu/purl/97634tmpms-cor.
APA, 6th edition
A group of men, in suits, some holding instruments, two guitars and one banjo (Box 53). [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/97634tmpms-cor.
Chicago
“A Group of Men, in Suits, Some Holding Instruments, Two Guitars and One Banjo.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 53. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/97634tmpms-cor.