MLA

Kissinger, Henry, 1923-2023. "The Communist Challenge"-remarks at San Fernando Valley State College, May 19, 1964. Box 177, folder 18. 1964 May. https://collections.library.yale.edu/catalog/11785415.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 177, folder 18"])(1964 May)["The Communist Challenge"-remarks at San Fernando Valley State College, May 19, 1964]. https://collections.library.yale.edu/catalog/11785415.