MLA

Kissinger, Henry, 1923-2023. Frye, Alton. Box 22, folder 16. 1965. https://collections.library.yale.edu/catalog/11782719.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 22, folder 16"])(1965)[Frye, Alton]. https://collections.library.yale.edu/catalog/11782719.