MLA

Kissinger, Henry, 1923-2023. Hanks, Nancy. Box 150, folder 8. 1959 September-1961 September. https://collections.library.yale.edu/catalog/11784990.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 150, folder 8"])(1959 September-1961 September)[Hanks, Nancy]. https://collections.library.yale.edu/catalog/11784990.