So-Sp
MLA
Kissinger, Henry, 1923-2023. So-Sp. Box 486, folder 12. 1985-1986. https://collections.library.yale.edu/catalog/11778408.
APA, 6th edition
Kissinger, Henry, 1923-2023. (["Box 486, folder 12"])(1985-1986)[So-Sp]. https://collections.library.yale.edu/catalog/11778408.