MLA

Kissinger, Henry, 1923-2023. Luchsinger, Fred. Box 39, folder 8. 1963-1965. https://collections.library.yale.edu/catalog/11783090.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 39, folder 8"])(1963-1965)[Luchsinger, Fred]. https://collections.library.yale.edu/catalog/11783090.