MLA

Kissinger, Henry, 1923-2023. Gu. Box 311, folder 12. 1968-1972. https://collections.library.yale.edu/catalog/11774659.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 311, folder 12"])(1968-1972)[Gu]. https://collections.library.yale.edu/catalog/11774659.