MLA

Kissinger, Henry, 1923-2023. Brazilian Project. Box 9, folder 23. 1963-1965. https://collections.library.yale.edu/catalog/11782446.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 9, folder 23"])(1963-1965)[Brazilian Project]. https://collections.library.yale.edu/catalog/11782446.