MLA

Kissinger, Henry, 1923-2023. Balkans. Box 115, folder 14. Circa 1948-circa 1950. https://collections.library.yale.edu/catalog/11784342.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 115, folder 14"])(Circa 1948-circa 1950)[Balkans]. https://collections.library.yale.edu/catalog/11784342.