MLA

Kissinger, Henry, 1923-2023. Kr. Box 33, folder 15. 1951. https://collections.library.yale.edu/catalog/11782958.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 33, folder 15"])(1951)[Kr]. https://collections.library.yale.edu/catalog/11782958.