MLA
Co., Harris Photo Post Card. Please Go Away and Let Me Sleep : Two African American Boys Sleeping on a Bench Outdoors in Lake Winola, Pennsylvania. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 68. https://digital.library.emory.edu/purl/262s4mw6q4-cor.
APA, 6th edition
Co., H. P. P. C. Please go away and let me sleep : two African American boys sleeping on a bench outdoors in Lake Winola, Pennsylvania (Box 68) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/262s4mw6q4-cor.
Chicago
Co., Harris Photo Post Card. “Please Go Away and Let Me Sleep : Two African American Boys Sleeping on a Bench Outdoors in Lake Winola, Pennsylvania.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 68. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/262s4mw6q4-cor.