MLA

Kissinger, Henry, 1923-2023. Bucharest, Romania. Box 770, folder 10. 1974 November 3-4. https://collections.library.yale.edu/catalog/11776570.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 770, folder 10"])(1974 November 3-4)[Bucharest, Romania]. https://collections.library.yale.edu/catalog/11776570.