MLA

Kissinger, Henry, 1923-2023. Research notes. Box 282, folder 2. Circa 1967-1968. https://collections.library.yale.edu/catalog/11787054.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 282, folder 2"])(Circa 1967-1968)[Research notes]. https://collections.library.yale.edu/catalog/11787054.