MLA

Kissinger, Henry, 1923-2023. Keo-Kim. Box 315, folder 12. 1968-1973. https://collections.library.yale.edu/catalog/11774723.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 315, folder 12"])(1968-1973)[Keo-Kim]. https://collections.library.yale.edu/catalog/11774723.