MLA

Kissinger, Henry, 1923-2023. "Helmut Kohl: A Life Devoted to Germany and Europe," symposium celebrating Helmut Kohl's 75th birthday, Berlin, Apr 12, 2005 [1 of 2]. Box 748, folder 7. 2005. https://collections.library.yale.edu/catalog/11782175.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 748, folder 7"])(2005)["Helmut Kohl: A Life Devoted to Germany and Europe," symposium celebrating Helmut Kohl's 75th birthday, Berlin, Apr 12, 2005 [1 of 2]]. https://collections.library.yale.edu/catalog/11782175.