MLA

Kissinger, Henry, 1923-2023. Saint Francis College. Box 53, folder 15. 1967-1968. https://collections.library.yale.edu/catalog/11783399.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 53, folder 15"])(1967-1968)[Saint Francis College]. https://collections.library.yale.edu/catalog/11783399.