MLA

Kissinger, Henry, 1923-2023. "The Politics of Alliance: The United States and Western Europe" by Francis M. Bator. Box 256, folder 7. 1968 September 6. https://collections.library.yale.edu/catalog/11786688.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 256, folder 7"])(1968 September 6)["The Politics of Alliance: The United States and Western Europe" by Francis M. Bator]. https://collections.library.yale.edu/catalog/11786688.