MLA

Kissinger, Henry, 1923-2023. Ro-Ru. Box 4, folder 14. 2000-2001. https://collections.library.yale.edu/catalog/12482041.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 4, folder 14"])(2000-2001)[Ro-Ru]. https://collections.library.yale.edu/catalog/12482041.