MLA

Kissinger, Henry, 1923-2023. Br. Box 488, folder 4. 1986-1987. https://collections.library.yale.edu/catalog/11778433.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 488, folder 4"])(1986-1987)[Br]. https://collections.library.yale.edu/catalog/11778433.