MLA

Kissinger, Henry, 1923-2023. Memoranda. Box 94, folder 10. Circa 1956-circa 1957. https://collections.library.yale.edu/catalog/11784033.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 94, folder 10"])(Circa 1956-circa 1957)[Memoranda]. https://collections.library.yale.edu/catalog/11784033.