MLA

Kissinger, Henry, 1923-2023. Marr-Mart. Box 317, folder 8. 1968-1973. https://collections.library.yale.edu/catalog/11774748.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 317, folder 8"])(1968-1973)[Marr-Mart]. https://collections.library.yale.edu/catalog/11774748.