MLA

Kissinger, Henry, 1923-2023. Pompidou, Georges. Box 298, folder 6. Circa 1971 December. https://collections.library.yale.edu/catalog/11774455.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 298, folder 6"])(Circa 1971 December)[Pompidou, Georges]. https://collections.library.yale.edu/catalog/11774455.