MLA
Brothers, Lane. Students, Groups, 1940s-1950s - Students in Business Class. 1940. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 18, Folder 2. https://digital.library.emory.edu/purl/52908kpsjt-cor.
APA, 6th edition
Brothers, L. (1940). Students, groups, 1940s-1950s - Students in Business Class (Box 18, Folder 2) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/52908kpsjt-cor.
Chicago
Brothers, Lane. “Students, Groups, 1940s-1950s - Students in Business Class.” Black-and-white photographs. EU Office of Alumni Publications Photos Deposit Collection 1, 1940. Box 18, Folder 2. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/52908kpsjt-cor.