MLA

Kissinger, Henry, 1923-2023. Manhattan Institute. Box 507, folder 9. 1989. https://collections.library.yale.edu/catalog/11778699.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 507, folder 9"])(1989)[Manhattan Institute]. https://collections.library.yale.edu/catalog/11778699.