MLA

Kissinger, Henry, 1923-2023. Po-Pu [includes photographs]. Box 298, folder 5. 1970-1974. https://collections.library.yale.edu/catalog/11774454.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 298, folder 5"])(1970-1974)[Po-Pu [includes photographs]]. https://collections.library.yale.edu/catalog/11774454.