MLA
Asheville Post Card Co. (Asheville, N.C.). Posing in the happy south : an African American boy sitting on a wood board [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/924wh70s1h-cor.
APA, 6th edition
Asheville Post Card Co. (Asheville, N.C.). (unknown)[Posing in the happy south : an African American boy sitting on a wood board [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/924wh70s1h-cor.
Chicago
Asheville Post Card Co. (Asheville, N.C.), Posing in the happy south : an African American boy sitting on a wood board [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/924wh70s1h-cor.