MLA

Kissinger, Henry, 1923-2023. Clippings. Box 862, folder 15. 1980 April. https://collections.library.yale.edu/catalog/11776210.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 862, folder 15"])(1980 April)[Clippings]. https://collections.library.yale.edu/catalog/11776210.