MLA

Kissinger, Henry, 1923-2023. Ninth and Tenth Pugwash Conferences on Science and World Affairs [3 of 3]. Box 107, folder 11. 1962 July-September. https://collections.library.yale.edu/catalog/11784235.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 107, folder 11"])(1962 July-September)[Ninth and Tenth Pugwash Conferences on Science and World Affairs [3 of 3]]. https://collections.library.yale.edu/catalog/11784235.