MLA

Kissinger, Henry, 1923-2023. Eastern Contract Management Region, Air Force-correspondence about travel to Communist countries. Box 249, folder 3. 1962-1965 April. https://collections.library.yale.edu/catalog/11786499.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 249, folder 3"])(1962-1965 April)[Eastern Contract Management Region, Air Force-correspondence about travel to Communist countries]. https://collections.library.yale.edu/catalog/11786499.