MLA

Kissinger, Henry, 1923-2023. Rogers, William D.. Box 558, folder 6. 1987. https://collections.library.yale.edu/catalog/11779539.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 558, folder 6"])(1987)[Rogers, William D.]. https://collections.library.yale.edu/catalog/11779539.