MLA

Kissinger, Henry, 1923-2023. Ar. Box 495, folder 6. 1988. https://collections.library.yale.edu/catalog/11778539.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 495, folder 6"])(1988)[Ar]. https://collections.library.yale.edu/catalog/11778539.