MLA

Kissinger, Henry, 1923-2023. Notes. Box 134, folder 7. Circa 1968. https://collections.library.yale.edu/catalog/11784700.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 134, folder 7"])(Circa 1968)[Notes]. https://collections.library.yale.edu/catalog/11784700.