MLA

Kissinger, Henry, 1923-2023. Q. Box 83, folder 4. 2003. https://collections.library.yale.edu/catalog/12481978.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 83, folder 4"])(2003)[Q]. https://collections.library.yale.edu/catalog/12481978.