MLA

Harrington, Oliver W. (Oliver Wendell), 1912-1995. Untitled. Box 15 (Oversize). no year July 25. https://collections.library.yale.edu/catalog/33075743.

APA, 6th edition

Harrington, Oliver W. (Oliver Wendell), 1912-1995. (["Box 15 (Oversize)"])(no year July 25)[Untitled]. https://collections.library.yale.edu/catalog/33075743.