MLA

Kissinger, Henry, 1923-2023. Paris peace negotiations. Box 228, folder 17. 1973 January. https://collections.library.yale.edu/catalog/12480760.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 228, folder 17"])(1973 January)[Paris peace negotiations]. https://collections.library.yale.edu/catalog/12480760.