MLA

Kissinger, Henry, 1923-2023. Appointments. Box 120, folder 4. 1958 April-1962 June. https://collections.library.yale.edu/catalog/11784439.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 120, folder 4"])(1958 April-1962 June)[Appointments]. https://collections.library.yale.edu/catalog/11784439.