MLA

Kissinger, Henry, 1923-2023. Newsweek 50th anniversary dinner, Feb 7, 1983. Box 752, folder 11. 1983. https://collections.library.yale.edu/catalog/11782234.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 752, folder 11"])(1983)[Newsweek 50th anniversary dinner, Feb 7, 1983]. https://collections.library.yale.edu/catalog/11782234.