MLA

Kissinger, Henry, 1923-2023. Wa. Box 613, folder 9. 1998. https://collections.library.yale.edu/catalog/11780250.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 613, folder 9"])(1998)[Wa]. https://collections.library.yale.edu/catalog/11780250.