MLA

Kissinger, Henry, 1923-2023. China. Box 91, folder 1. 2004 July. https://collections.library.yale.edu/catalog/12479489.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 91, folder 1"])(2004 July)[China]. https://collections.library.yale.edu/catalog/12479489.