MLA

Kissinger, Henry, 1923-2023. Ho. Box 3, folder 2. 2001. https://collections.library.yale.edu/catalog/12481910.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 3, folder 2"])(2001)[Ho]. https://collections.library.yale.edu/catalog/12481910.