MLA

Kissinger, Henry, 1923-2023. Kissinger speech for Nelson A. Rockefeller at P.S. 41 auditorium, May 27, 1968. Box 204, folder 12. 1968 May. https://collections.library.yale.edu/catalog/11785934.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 204, folder 12"])(1968 May)[Kissinger speech for Nelson A. Rockefeller at P.S. 41 auditorium, May 27, 1968]. https://collections.library.yale.edu/catalog/11785934.