MLA

Kissinger, Henry, 1923-2023. Ca. Box 585, folder 9. 1992. https://collections.library.yale.edu/catalog/11779881.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 585, folder 9"])(1992)[Ca]. https://collections.library.yale.edu/catalog/11779881.