MLA

Kissinger, Henry, 1923-2023. Hanoi and Bangkok. Box 228, folder 19. 1973 February. https://collections.library.yale.edu/catalog/12480813.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 228, folder 19"])(1973 February)[Hanoi and Bangkok]. https://collections.library.yale.edu/catalog/12480813.