MLA

Kissinger, Henry, 1923-2023. Incoming papers log. Box 343, folder 19. 1968. https://collections.library.yale.edu/catalog/11775154.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 343, folder 19"])(1968)[Incoming papers log]. https://collections.library.yale.edu/catalog/11775154.