MLA

Kissinger, Henry, 1923-2023. Slaughter, Anne-Marie. Box 146, folder 10. 2006-2007. https://collections.library.yale.edu/catalog/12479603.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 146, folder 10"])(2006-2007)[Slaughter, Anne-Marie]. https://collections.library.yale.edu/catalog/12479603.