MLA

Kissinger, Henry, 1923-2023. Aa-Ab. Box 86, folder 13. 2004. https://collections.library.yale.edu/catalog/12479727.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 86, folder 13"])(2004)[Aa-Ab]. https://collections.library.yale.edu/catalog/12479727.