MLA

Kissinger, Henry, 1923-2023. Schedule. Box 364, folder 5. 1975 January-March. https://collections.library.yale.edu/catalog/11775450.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 364, folder 5"])(1975 January-March)[Schedule]. https://collections.library.yale.edu/catalog/11775450.