MLA

Kissinger, Henry, 1923-2023. Smi. Box 53, folder 5. 1955-1969. https://collections.library.yale.edu/catalog/11783389.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 53, folder 5"])(1955-1969)[Smi]. https://collections.library.yale.edu/catalog/11783389.