MLA

Kissinger, Henry, 1923-2023. Bailey, Douglas. Box 7, folder 8. 1965 January-June. https://collections.library.yale.edu/catalog/11782386.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 7, folder 8"])(1965 January-June)[Bailey, Douglas]. https://collections.library.yale.edu/catalog/11782386.