MLA

Miłosz, Czesław, 1911-2004. Personal documents. Box 181, folder 2801-2810. 1937-1961. https://collections.library.yale.edu/catalog/10033878.

APA, 6th edition

Miłosz, Czesław, 1911-2004. (["Box 181, folder 2801-2810"])(1937-1961)[Personal documents]. https://collections.library.yale.edu/catalog/10033878.