MLA

Kissinger, Henry, 1923-2023. General. Box 176, folder 23. 1963 August-September. https://collections.library.yale.edu/catalog/11785395.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 176, folder 23"])(1963 August-September)[General]. https://collections.library.yale.edu/catalog/11785395.