MLA

Kissinger, Henry, 1923-2023. White Nights Foundation. Box 148, folder 11. 2007. https://collections.library.yale.edu/catalog/12479687.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 148, folder 11"])(2007)[White Nights Foundation]. https://collections.library.yale.edu/catalog/12479687.