MLA
An African American, Wearing a Suit, Resting His Right Arm on a Chair. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 61. https://digital.library.emory.edu/purl/815p8cz90n-cor.
APA, 6th edition
An African American, wearing a suit, resting his right arm on a chair (Box 61). [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/815p8cz90n-cor.
Chicago
“An African American, Wearing a Suit, Resting His Right Arm on a Chair.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 61. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/815p8cz90n-cor.