MLA

Kissinger, Henry, 1923-2023. Fo. Box 505, folder 8. 1988-1989. https://collections.library.yale.edu/catalog/11778669.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 505, folder 8"])(1988-1989)[Fo]. https://collections.library.yale.edu/catalog/11778669.