MLA

Vance, Cyrus R. (Cyrus Roberts), 1917-2002. Statements, notes, reports, news items, and briefings. Box 4, folder 41-43. 1967. https://collections.library.yale.edu/catalog/10012723.

APA, 6th edition

Vance, Cyrus R. (Cyrus Roberts), 1917-2002. (["Box 4, folder 41-43"])(1967)[Statements, notes, reports, news items, and briefings]. https://collections.library.yale.edu/catalog/10012723.