MLA

Kissinger, Henry, 1923-2023. Paris peace negotiations, general. Box 106, folder 5. 1967 July-1968 July. https://collections.library.yale.edu/catalog/11784216.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 106, folder 5"])(1967 July-1968 July)[Paris peace negotiations, general]. https://collections.library.yale.edu/catalog/11784216.