MLA

Kissinger, Henry, 1923-2023. Calendars. Box 213, folder 12. 1965 January-1968 December. https://collections.library.yale.edu/catalog/11786032.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 213, folder 12"])(1965 January-1968 December)[Calendars]. https://collections.library.yale.edu/catalog/11786032.