MLA

Stern, Robert A. M., 1939-. Sketches/small drawings. Box 33 | Box 97. 1982 1985. https://collections.library.yale.edu/catalog/10021645.

APA, 6th edition

Stern, Robert A. M., 1939-. (["Box 33 | Box 97"])(1982 1985)[Sketches/small drawings]. https://collections.library.yale.edu/catalog/10021645.