MLA

Kissinger, Henry, 1923-2023. Lecture notes, miscellaneous. Box 68, folder 12. Circa 1947-circa 1950. https://collections.library.yale.edu/catalog/11783718.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 68, folder 12"])(Circa 1947-circa 1950)[Lecture notes, miscellaneous]. https://collections.library.yale.edu/catalog/11783718.