MLA

Kissinger, Henry, 1923-2023. Grau. Box 73, folder 2. 2003. https://collections.library.yale.edu/catalog/12481859.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 73, folder 2"])(2003)[Grau]. https://collections.library.yale.edu/catalog/12481859.