MLA

Kissinger, Henry, 1923-2023. N. Box 554, folder 13. 1985. https://collections.library.yale.edu/catalog/11779475.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 554, folder 13"])(1985)[N]. https://collections.library.yale.edu/catalog/11779475.