MLA
Unusual Weather on Campus - Snowman with Coat, Hat, and Cigar. 1950. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 3, Folder 7. https://digital.library.emory.edu/purl/030prr4z29-cor.
APA, 6th edition
Unusual weather on campus - Snowman with coat, hat, and cigar (Box 3, Folder 7). (1950). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/030prr4z29-cor.
Chicago
“Unusual Weather on Campus - Snowman with Coat, Hat, and Cigar.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1950. Box 3, Folder 7. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/030prr4z29-cor.