MLA

Kissinger, Henry, 1923-2023. Kotite, Phyllis. Box 36, folder 8. 1968. https://collections.library.yale.edu/catalog/11783021.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 36, folder 8"])(1968)[Kotite, Phyllis]. https://collections.library.yale.edu/catalog/11783021.