MLA
Askew, Thomas E. Portrait of J.D. Rice in a Suit Seated in an Ornate Chair with His Right Leg Crossed over His Left. 1912. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 18. https://digital.library.emory.edu/purl/972p5hqc9f-cor.
APA, 6th edition
Askew, T. E. (1912). Portrait of J.D. Rice in a suit seated in an ornate chair with his right leg crossed over his left (Box 18) [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/972p5hqc9f-cor.
Chicago
Askew, Thomas E. “Portrait of J.D. Rice in a Suit Seated in an Ornate Chair with His Right Leg Crossed over His Left.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, 1912. Box 18. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/972p5hqc9f-cor.