MLA

Kissinger, Henry, 1923-2023. NBC interview by David Frost. Box 428, folder 9. 1979. https://collections.library.yale.edu/catalog/11777692.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 428, folder 9"])(1979)[NBC interview by David Frost]. https://collections.library.yale.edu/catalog/11777692.