MLA

Kissinger, Henry, 1923-2023. Western Reserve University. Box 63, folder 9. 1956-1962. https://collections.library.yale.edu/catalog/11783614.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 63, folder 9"])(1956-1962)[Western Reserve University]. https://collections.library.yale.edu/catalog/11783614.