MLA

Kissinger, Henry, 1923-2023. St. Box 480, folder 9. 1984-1985. https://collections.library.yale.edu/catalog/11778321.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 480, folder 9"])(1984-1985)[St]. https://collections.library.yale.edu/catalog/11778321.