MLA
National Art Views Co. (N.Y.). An African American boy smiling and wearing a coat and hat. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/1848pk0p44-cor.
APA, 6th edition
National Art Views Co. (N.Y.). (unknown)[An African American boy smiling and wearing a coat and hat]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/1848pk0p44-cor.
Chicago
National Art Views Co. (N.Y.), An African American boy smiling and wearing a coat and hat, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/1848pk0p44-cor.