MLA

Holden, Reuben A. (Reuben Andrus), 1918-. Elisha Williams. Box 1, folder 3. circa 1967-1968. https://collections.library.yale.edu/catalog/10011729.

APA, 6th edition

Holden, Reuben A. (Reuben Andrus), 1918-. (["Box 1, folder 3"])(circa 1967-1968)[Elisha Williams]. https://collections.library.yale.edu/catalog/10011729.