MLA

Kissinger, Henry, 1923-2023. Itinerary. Box 184, folder 16. Circa 1963 August. https://collections.library.yale.edu/catalog/11785546.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 184, folder 16"])(Circa 1963 August)[Itinerary]. https://collections.library.yale.edu/catalog/11785546.