MLA

Amichai, Yehuda, 1924-2000. Hughes, Carol. Box 51, folder 1611. 1986. https://collections.library.yale.edu/catalog/2057206.

APA, 6th edition

Amichai, Yehuda, 1924-2000. (["Box 51, folder 1611"])(1986)[Hughes, Carol]. https://collections.library.yale.edu/catalog/2057206.