MLA
Pullman, E. J. Drawing of a Woman in a Dress Wearing a Stars and Eagle Hat Standing on Top of a Snake Holding a Rifle in One Hand with a Sign Held up by Her Other Hand with an African American Man Standing in Front of Her Also Holding the Rifle in One Hand with Hi. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 63. https://digital.library.emory.edu/purl/13331zcrnf-cor.
APA, 6th edition
Pullman, E. J. Drawing of a woman in a dress wearing a stars and eagle hat standing on top of a snake holding a rifle in one hand with a sign held up by her other hand with an African American man standing in front of her also holding the rifle in one hand with hi (Box 63) [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/13331zcrnf-cor.
Chicago
Pullman, E. J. “Drawing of a Woman in a Dress Wearing a Stars and Eagle Hat Standing on Top of a Snake Holding a Rifle in One Hand with a Sign Held up by Her Other Hand with an African American Man Standing in Front of Her Also Holding the Rifle in One Hand with Hi.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 63. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/13331zcrnf-cor.