MLA

Kissinger, Henry, 1923-2023. German Research Program-papers. Box 125, folder 19. 1968. https://collections.library.yale.edu/catalog/11784540.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 125, folder 19"])(1968)[German Research Program-papers]. https://collections.library.yale.edu/catalog/11784540.