"Campo Tures, Primavera, Normelan's Castle" [includes images of Botticelli's Primavera]
MLA
Keller, Deane, 1901-1992. "Campo Tures, Primavera, Normelan's Castle" [includes images of Botticelli's Primavera]. Box 26, folder 87. 1940-1960 (inclusive), 1943-1946 (bulk). https://collections.library.yale.edu/catalog/10012658.
APA, 6th edition
Keller, Deane, 1901-1992. (["Box 26, folder 87"])(1940-1960 (inclusive), 1943-1946 (bulk))["Campo Tures, Primavera, Normelan's Castle" [includes images of Botticelli's Primavera]]. https://collections.library.yale.edu/catalog/10012658.