MLA
Rotograph Co. (New York, N.Y.). A southern express : African American man on an ox-drawn cart. August 1907. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0859cnp5mh-cor.
APA, 6th edition
Rotograph Co. (New York, N.Y.). (August 1907)[A southern express : African American man on an ox-drawn cart]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0859cnp5mh-cor.
Chicago
Rotograph Co. (New York, N.Y.), A southern express : African American man on an ox-drawn cart, August 1907, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0859cnp5mh-cor.