MLA

Kissinger, Henry, 1923-2023. Speech for the Pilgrims of the United States dinner in honor of Pearson, Nov 6, 1963. Box 159, folder 5. 1963 September-November. https://collections.library.yale.edu/catalog/11785147.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 159, folder 5"])(1963 September-November)[Speech for the Pilgrims of the United States dinner in honor of Pearson, Nov 6, 1963]. https://collections.library.yale.edu/catalog/11785147.