MLA

Kissinger, Henry, 1923-2023. He. Box 120, folder 1. 2005-2006. https://collections.library.yale.edu/catalog/12479471.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 120, folder 1"])(2005-2006)[He]. https://collections.library.yale.edu/catalog/12479471.