MLA

Kissinger, Henry, 1923-2023. Anecdotal "color" papers-Helsinki and Aleksandr Solzhenitsyn, additional [1 of 2]. Box 209, folder 8. 1975-1998. https://collections.library.yale.edu/catalog/12480848.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 209, folder 8"])(1975-1998)[Anecdotal "color" papers-Helsinki and Aleksandr Solzhenitsyn, additional [1 of 2]]. https://collections.library.yale.edu/catalog/12480848.