MLA
Elcha (New York, N.Y.). Young men and young women posing together. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0924b8gtq7-cor.
APA, 6th edition
Elcha (New York, N.Y.). (unknown)[Young men and young women posing together]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0924b8gtq7-cor.
Chicago
Elcha (New York, N.Y.), Young men and young women posing together, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0924b8gtq7-cor.