MLA

Kissinger, Henry, 1923-2023. "Nuclear Weapons and American Foreign Policy," America-Japan Society, Sep 12, 1960. Box 247, folder 4. 1960 December 16. https://collections.library.yale.edu/catalog/11786450.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 247, folder 4"])(1960 December 16)["Nuclear Weapons and American Foreign Policy," America-Japan Society, Sep 12, 1960]. https://collections.library.yale.edu/catalog/11786450.