MLA

Wilson, Edmund, 1895-1972. Milano, Paolo. Box 46, folder 1247-1248. 1945-54, n.d.. https://collections.library.yale.edu/catalog/17083227.

APA, 6th edition

Wilson, Edmund, 1895-1972. (["Box 46, folder 1247-1248"])(1945-54, n.d.)[Milano, Paolo]. https://collections.library.yale.edu/catalog/17083227.