MLA
Graycraft Card Co. (Danville, Va.). Postcard of three African American children playing in cotton [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/56341ns1v8-cor.
APA, 6th edition
Graycraft Card Co. (Danville, Va.). (unknown)[Postcard of three African American children playing in cotton [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/56341ns1v8-cor.
Chicago
Graycraft Card Co. (Danville, Va.), Postcard of three African American children playing in cotton [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/56341ns1v8-cor.