MLA

Kissinger, Henry, 1923-2023. Correspondence. Box 106, folder 10. 1961-1962. https://collections.library.yale.edu/catalog/11784222.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 106, folder 10"])(1961-1962)[Correspondence]. https://collections.library.yale.edu/catalog/11784222.