MLA

Kissinger, Henry, 1923-2023. Notes on deterrence. Box 254, folder 1. Undated, circa 1955-circa 1968. https://collections.library.yale.edu/catalog/11786640.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 254, folder 1"])(Undated, circa 1955-circa 1968)[Notes on deterrence]. https://collections.library.yale.edu/catalog/11786640.