MLA

Kissinger, Henry, 1923-2023. Remarks on Hans Merkle, Bosch Institute Fifth Annual Conference, Berlin, Oct 4, 2001 [1 of 2]. Box 740, folder 21. 2001. https://collections.library.yale.edu/catalog/11782073.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 740, folder 21"])(2001)[Remarks on Hans Merkle, Bosch Institute Fifth Annual Conference, Berlin, Oct 4, 2001 [1 of 2]]. https://collections.library.yale.edu/catalog/11782073.