MLA

Kissinger, Henry, 1923-2023. "Nuclear Power and U.S. Foreign Relations," Industrial College of the Armed Forces, May 21, 1956. Box 241, folder 1. 1956 August. https://collections.library.yale.edu/catalog/11786348.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 241, folder 1"])(1956 August)["Nuclear Power and U.S. Foreign Relations," Industrial College of the Armed Forces, May 21, 1956]. https://collections.library.yale.edu/catalog/11786348.