MLA

Kissinger, Henry, 1923-2023. Schedule. Box 365, folder 7. 1976 April-May. https://collections.library.yale.edu/catalog/11775459.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 365, folder 7"])(1976 April-May)[Schedule]. https://collections.library.yale.edu/catalog/11775459.