MLA
Paddio. Louis Armstrong Holding Trumpet with Other Men around a Microphone. 1931. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 26. https://digital.library.emory.edu/purl/262s4mw6r2-cor.
APA, 6th edition
P. (1931). Louis Armstrong holding trumpet with other men around a microphone (Box 26) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/262s4mw6r2-cor.
Chicago
Paddio. “Louis Armstrong Holding Trumpet with Other Men around a Microphone.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, 1931. Box 26. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/262s4mw6r2-cor.