MLA

Kissinger, Henry, 1923-2023. Bo. Box 559, folder 5. 1988. https://collections.library.yale.edu/catalog/11779557.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 559, folder 5"])(1988)[Bo]. https://collections.library.yale.edu/catalog/11779557.