MLA
Asheville Post Card Co. (Asheville, N.C.). An ox-cart in Dixieland, slow but sure [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/907tmpg4hq-cor.
APA, 6th edition
Asheville Post Card Co. (Asheville, N.C.). (unknown)[An ox-cart in Dixieland, slow but sure [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/907tmpg4hq-cor.
Chicago
Asheville Post Card Co. (Asheville, N.C.), An ox-cart in Dixieland, slow but sure [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/907tmpg4hq-cor.