MLA

Kissinger, Henry, 1923-2023. Bridgeman seminar. Box 71, folder 14. Circa 1950-circa 1954. https://collections.library.yale.edu/catalog/11783776.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 71, folder 14"])(Circa 1950-circa 1954)[Bridgeman seminar]. https://collections.library.yale.edu/catalog/11783776.