MLA

Kissinger, Henry, 1923-2023. Collart, Yanou with Kissinger. Box 785, folder 12. Undated, circa 1954-circa 2002. https://collections.library.yale.edu/catalog/11777101.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 785, folder 12"])(Undated, circa 1954-circa 2002)[Collart, Yanou with Kissinger]. https://collections.library.yale.edu/catalog/11777101.