MLA

Amichai, Yehuda, 1924-2000. United Nations. Box 11, folder 550. 1992 Aug 20. https://collections.library.yale.edu/catalog/17282950.

APA, 6th edition

Amichai, Yehuda, 1924-2000. (["Box 11, folder 550"])(1992 Aug 20)[United Nations]. https://collections.library.yale.edu/catalog/17282950.