MLA

Kissinger, Henry, 1923-2023. Sales record. Box 271, folder 6. 1966. https://collections.library.yale.edu/catalog/11786867.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 271, folder 6"])(1966)[Sales record]. https://collections.library.yale.edu/catalog/11786867.