MLA

Kissinger, Henry, 1923-2023. Pe. Box 574, folder 3. 1984-1989. https://collections.library.yale.edu/catalog/11779727.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 574, folder 3"])(1984-1989)[Pe]. https://collections.library.yale.edu/catalog/11779727.