MLA

Kissinger, Henry, 1923-2023. Correspondence. Box 118, folder 12. 1957 June-1958 May. https://collections.library.yale.edu/catalog/11784409.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 118, folder 12"])(1957 June-1958 May)[Correspondence]. https://collections.library.yale.edu/catalog/11784409.