MLA

Kissinger, Henry, 1923-2023. La. Box 611, folder 7. 1998. https://collections.library.yale.edu/catalog/11780224.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 611, folder 7"])(1998)[La]. https://collections.library.yale.edu/catalog/11780224.