MLA

Kissinger, Henry, 1923-2023. J. Box 32, folder 5. 2006. https://collections.library.yale.edu/catalog/12481607.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 32, folder 5"])(2006)[J]. https://collections.library.yale.edu/catalog/12481607.