MLA

Kissinger, Henry, 1923-2023. Cooperative Forum. Box 14, folder 4. 1965-1966. https://collections.library.yale.edu/catalog/11782533.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 14, folder 4"])(1965-1966)[Cooperative Forum]. https://collections.library.yale.edu/catalog/11782533.