MLA

Kissinger, Henry, 1923-2023. Wakaizumi, Kei. Box 62, folder 15. 1960. https://collections.library.yale.edu/catalog/11783594.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 62, folder 15"])(1960)[Wakaizumi, Kei]. https://collections.library.yale.edu/catalog/11783594.