MLA

Kissinger, Henry, 1923-2023. Mc. Box 443, folder 6. 1981. https://collections.library.yale.edu/catalog/11777883.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 443, folder 6"])(1981)[Mc]. https://collections.library.yale.edu/catalog/11777883.