MLA

Kissinger, Henry, 1923-2023. "The Building of a Just World Order," World Affairs Council of Philadelphia luncheon, May 1, 1968. Box 203, folder 14. 1968 May. https://collections.library.yale.edu/catalog/11785917.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 203, folder 14"])(1968 May)["The Building of a Just World Order," World Affairs Council of Philadelphia luncheon, May 1, 1968]. https://collections.library.yale.edu/catalog/11785917.