MLA

Kissinger, Henry, 1923-2023. Br. Box 495, folder 12. 1987-1988. https://collections.library.yale.edu/catalog/11778545.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 495, folder 12"])(1987-1988)[Br]. https://collections.library.yale.edu/catalog/11778545.