MLA

Hutchinson, G. Evelyn (George Evelyn), 1903-1991. Marsh Lecture and Verrill Award ceremony. Box 108, folder 13. 1981. https://collections.library.yale.edu/catalog/10014521.

APA, 6th edition

Hutchinson, G. Evelyn (George Evelyn), 1903-1991. (["Box 108, folder 13"])(1981)[Marsh Lecture and Verrill Award ceremony]. https://collections.library.yale.edu/catalog/10014521.