MLA

Kissinger, Henry, 1923-2023. Ru. Box 22, folder 7. 2004. https://collections.library.yale.edu/catalog/12481280.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 22, folder 7"])(2004)[Ru]. https://collections.library.yale.edu/catalog/12481280.