MLA
Co., Barber Photo Supply. Young Men and Women and One Child Wearing Graduation Robes in Front of Windows. 1940. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 11. https://digital.library.emory.edu/purl/5462547dff-cor.
APA, 6th edition
Co., B. P. S. (1940). Young men and women and one child wearing graduation robes in front of windows (Box 11) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5462547dff-cor.
Chicago
Co., Barber Photo Supply. “Young Men and Women and One Child Wearing Graduation Robes in Front of Windows.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, 1940. Box 11. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5462547dff-cor.