MLA
International Post Card Co. (N.Y.). Market time is here : three African American men on an oxen-drawn cart of hay bales [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/436tx95x8f-cor.
APA, 6th edition
International Post Card Co. (N.Y.). (unknown)[Market time is here : three African American men on an oxen-drawn cart of hay bales [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/436tx95x8f-cor.
Chicago
International Post Card Co. (N.Y.), Market time is here : three African American men on an oxen-drawn cart of hay bales [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/436tx95x8f-cor.