MLA

Kissinger, Henry, 1923-2023. "Management of Coalitions" speech notes. Box 253, folder 23. Undated, circa 1955-circa 1968. https://collections.library.yale.edu/catalog/11786634.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 253, folder 23"])(Undated, circa 1955-circa 1968)["Management of Coalitions" speech notes]. https://collections.library.yale.edu/catalog/11786634.