MLA
Orr, Edgar. Library - Matheson Reading Room in Candler Library. 1940. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 1, Folder 10. https://digital.library.emory.edu/purl/730bvq83xq-cor.
APA, 6th edition
Orr, E. (1940). Library - Matheson Reading Room in Candler library (Box 1, Folder 10) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/730bvq83xq-cor.
Chicago
Orr, Edgar. “Library - Matheson Reading Room in Candler Library.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1940. Box 1, Folder 10. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/730bvq83xq-cor.