MLA

Kissinger, Henry, 1923-2023. Gelb, Leslie. Box 24, folder 8. 1964 June-December. https://collections.library.yale.edu/catalog/11782747.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 24, folder 8"])(1964 June-December)[Gelb, Leslie]. https://collections.library.yale.edu/catalog/11782747.