MLA

Kissinger, Henry, 1923-2023. We. Box 515, folder 9. 1990-1991. https://collections.library.yale.edu/catalog/11778835.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 515, folder 9"])(1990-1991)[We]. https://collections.library.yale.edu/catalog/11778835.