MLA

Kissinger, Henry, 1923-2023. Distinctive Diaries Ltd.. Box 16, folder 27. 1967. https://collections.library.yale.edu/catalog/11782598.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 16, folder 27"])(1967)[Distinctive Diaries Ltd.]. https://collections.library.yale.edu/catalog/11782598.