MLA

Kissinger, Henry, 1923-2023. Man. Box 317, folder 6. 1969-1973. https://collections.library.yale.edu/catalog/11774746.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 317, folder 6"])(1969-1973)[Man]. https://collections.library.yale.edu/catalog/11774746.