MLA

Kissinger, Henry, 1923-2023. Columbia University. Box 132, folder 2. 2007. https://collections.library.yale.edu/catalog/12479342.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 132, folder 2"])(2007)[Columbia University]. https://collections.library.yale.edu/catalog/12479342.