MLA

Kissinger, Henry, 1923-2023. Cartoons. Box 221, folder 7. 1976 September 5. https://collections.library.yale.edu/catalog/12480806.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 221, folder 7"])(1976 September 5)[Cartoons]. https://collections.library.yale.edu/catalog/12480806.