MLA
Unidentified Speakers and Entertainers - Group Singing. Emory University. Office of Alumni Publications., 1949. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 7, Folder 1. https://digital.library.emory.edu/purl/832r4xgz1v-cor.
APA, 6th edition
Unidentified Speakers and Entertainers - Group singing (Box 7, Folder 1). (1949). [Black-and-white photographs]. Emory University. Office of Alumni Publications.; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/832r4xgz1v-cor.
Chicago
“Unidentified Speakers and Entertainers - Group Singing.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs. Emory University. Office of Alumni Publications., 1949. Box 7, Folder 1. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/832r4xgz1v-cor.