MLA
Man Sitting on Chair (Crayon Portrait). Stuart A. Rose Manuscript, Archives, and Rare Book Library, OP60. https://digital.library.emory.edu/purl/665h9w0vw3-cor.
APA, 6th edition
Man sitting on chair (crayon portrait) (OP60). [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/665h9w0vw3-cor.
Chicago
“Man Sitting on Chair (Crayon Portrait).” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. OP60. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/665h9w0vw3-cor.