MLA

Kissinger, Henry, 1923-2023. Demoralizing effect of Vietnam. Box 196, folder 9. 1964 March. https://collections.library.yale.edu/catalog/11785749.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 196, folder 9"])(1964 March)[Demoralizing effect of Vietnam]. https://collections.library.yale.edu/catalog/11785749.