MLA

Kissinger, Henry, 1923-2023. Brazilian-American Chamber of Commerce dinner. Box 225, folder 4. 2002 May 16. https://collections.library.yale.edu/catalog/12480254.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 225, folder 4"])(2002 May 16)[Brazilian-American Chamber of Commerce dinner]. https://collections.library.yale.edu/catalog/12480254.