MLA

Kissinger, Henry, 1923-2023. Lecture notes on deterrence. Box 253, folder 22. Undated, circa 1955-circa 1968. https://collections.library.yale.edu/catalog/11786633.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 253, folder 22"])(Undated, circa 1955-circa 1968)[Lecture notes on deterrence]. https://collections.library.yale.edu/catalog/11786633.