MLA

Kissinger, Henry, 1923-2023. Drafts of foreword to Memoirs: Fifty Years of Political Reflection by Raymond Aron, Feb 1989. Box 711, folder 13. 1989. https://collections.library.yale.edu/catalog/11781616.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 711, folder 13"])(1989)[Drafts of foreword to Memoirs: Fifty Years of Political Reflection by Raymond Aron, Feb 1989]. https://collections.library.yale.edu/catalog/11781616.