MLA

Kissinger, Henry, 1923-2023. Transcripts. Box 192, folder 2. 1973 April 18-21. https://collections.library.yale.edu/catalog/12481503.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 192, folder 2"])(1973 April 18-21)[Transcripts]. https://collections.library.yale.edu/catalog/12481503.