MLA

Kissinger, Henry, 1923-2023. Hu. Box 637, folder 9. 1982. https://collections.library.yale.edu/catalog/11780583.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 637, folder 9"])(1982)[Hu]. https://collections.library.yale.edu/catalog/11780583.