MLA

Kissinger, Henry, 1923-2023. Hy. Box 314, folder 7. 1970-1972. https://collections.library.yale.edu/catalog/11774704.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 314, folder 7"])(1970-1972)[Hy]. https://collections.library.yale.edu/catalog/11774704.