MLA

Kissinger, Henry, 1923-2023. Budget. Box 127, folder 9. 1956-1957. https://collections.library.yale.edu/catalog/11784568.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 127, folder 9"])(1956-1957)[Budget]. https://collections.library.yale.edu/catalog/11784568.