MLA

Kissinger, Henry, 1923-2023. Fio-Fit. Box 92, folder 6. 2004. https://collections.library.yale.edu/catalog/12479234.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 92, folder 6"])(2004)[Fio-Fit]. https://collections.library.yale.edu/catalog/12479234.