MLA

Kissinger, Henry, 1923-2023. General. Box 191, folder 6. 1964. https://collections.library.yale.edu/catalog/11785668.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 191, folder 6"])(1964)[General]. https://collections.library.yale.edu/catalog/11785668.