MLA

Kissinger, Henry, 1923-2023. Ford Foundation. Box 21, folder 1. 1955-1966. https://collections.library.yale.edu/catalog/11782686.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 21, folder 1"])(1955-1966)[Ford Foundation]. https://collections.library.yale.edu/catalog/11782686.