MLA
Hilsman, Buck. Emory Alumnus Sketches - Bongo Drum Improv. 1955. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 26, Folder 3. https://digital.library.emory.edu/purl/69673n5vbb-cor.
APA, 6th edition
Hilsman, B. (1955). Emory Alumnus sketches - Bongo drum improv (Box 26, Folder 3) [Cartoons]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/69673n5vbb-cor.
Chicago
Hilsman, Buck. “Emory Alumnus Sketches - Bongo Drum Improv.” Cartoons. EU Office of Alumni Publications Photos Deposit Collection 2 , 1955. Box 26, Folder 3. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/69673n5vbb-cor.