MLA

Kissinger, Henry, 1923-2023. Nab-Net. Box 151, folder 12. 1968-1973. https://collections.library.yale.edu/catalog/12479789.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 151, folder 12"])(1968-1973)[Nab-Net]. https://collections.library.yale.edu/catalog/12479789.