MLA

Kissinger, Henry, 1923-2023. T. Box 616, folder 12. 1998-1999. https://collections.library.yale.edu/catalog/11780293.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 616, folder 12"])(1998-1999)[T]. https://collections.library.yale.edu/catalog/11780293.