MLA
Rotograph Co. (New York, N.Y.). Four African American children eating watermelon. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/201bk3j9pj-cor.
APA, 6th edition
Rotograph Co. (New York, N.Y.). (unknown)[Four African American children eating watermelon]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/201bk3j9pj-cor.
Chicago
Rotograph Co. (New York, N.Y.), Four African American children eating watermelon, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/201bk3j9pj-cor.