MLA

Kissinger, Henry, 1923-2023. "Political and Social Aspects of National Security," Church Peace Union. Box 242, folder 14. 1958 January-February. https://collections.library.yale.edu/catalog/11786376.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 242, folder 14"])(1958 January-February)["Political and Social Aspects of National Security," Church Peace Union]. https://collections.library.yale.edu/catalog/11786376.