MLA

Kissinger, Henry, 1923-2023. Atlantic Institute. Box 5, folder 2. 1962. https://collections.library.yale.edu/catalog/11782349.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 5, folder 2"])(1962)[Atlantic Institute]. https://collections.library.yale.edu/catalog/11782349.