MLA

Kissinger, Henry, 1923-2023. Ca. Box 504, folder 11. 1986-1989. https://collections.library.yale.edu/catalog/11778659.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 504, folder 11"])(1986-1989)[Ca]. https://collections.library.yale.edu/catalog/11778659.