MLA

Kissinger, Henry, 1923-2023. "Global Realities: Risks and Opportunities," Conference Board and Booz Allen and Hamilton. Box 752, folder 4. Undated, circa 1977-circa 2006. https://collections.library.yale.edu/catalog/11782226.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 752, folder 4"])(Undated, circa 1977-circa 2006)["Global Realities: Risks and Opportunities," Conference Board and Booz Allen and Hamilton]. https://collections.library.yale.edu/catalog/11782226.