MLA

Kissinger, Henry, 1923-2023. Di. Box 309, folder 5. 1969-1973. https://collections.library.yale.edu/catalog/11774623.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 309, folder 5"])(1969-1973)[Di]. https://collections.library.yale.edu/catalog/11774623.