MLA

Kissinger, Henry, 1923-2023. Mca-Mcb. Box 333, folder 6. 1974-1976. https://collections.library.yale.edu/catalog/11774975.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 333, folder 6"])(1974-1976)[Mca-Mcb]. https://collections.library.yale.edu/catalog/11774975.