MLA

Kissinger, Henry, 1923-2023. Middle East. Box 225, folder 12. 1968 May-September. https://collections.library.yale.edu/catalog/11786189.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 225, folder 12"])(1968 May-September)[Middle East]. https://collections.library.yale.edu/catalog/11786189.