MLA

Kissinger, Henry, 1923-2023. F. Box 25, folder 8. 2005. https://collections.library.yale.edu/catalog/12481340.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 25, folder 8"])(2005)[F]. https://collections.library.yale.edu/catalog/12481340.