MLA

Kissinger, Henry, 1923-2023. Di. Box 2, folder 2. 2001. https://collections.library.yale.edu/catalog/12482159.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 2, folder 2"])(2001)[Di]. https://collections.library.yale.edu/catalog/12482159.