MLA

Kissinger, Henry, 1923-2023. China presidential trip. Box 228, folder 36. 1975 December. https://collections.library.yale.edu/catalog/12480455.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 228, folder 36"])(1975 December)[China presidential trip]. https://collections.library.yale.edu/catalog/12480455.