MLA

Kissinger, Henry, 1923-2023. T. Box 556, folder 15. 1984-1987. https://collections.library.yale.edu/catalog/11779512.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 556, folder 15"])(1984-1987)[T]. https://collections.library.yale.edu/catalog/11779512.