MLA

Kissinger, Henry, 1923-2023. Vietnam speeches-drafts. Box 211, folder 8. Circa 1968 April. https://collections.library.yale.edu/catalog/11786008.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 211, folder 8"])(Circa 1968 April)[Vietnam speeches-drafts]. https://collections.library.yale.edu/catalog/11786008.