MLA

Kissinger, Henry, 1923-2023. Address books. Box 66, folder 2. Circa 1939. https://collections.library.yale.edu/catalog/11783673.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 66, folder 2"])(Circa 1939)[Address books]. https://collections.library.yale.edu/catalog/11783673.