MLA

Kissinger, Henry, 1923-2023. Adenauer, Konrad. Box 1, folder 10. 1961-1967. https://collections.library.yale.edu/catalog/11782289.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 1, folder 10"])(1961-1967)[Adenauer, Konrad]. https://collections.library.yale.edu/catalog/11782289.