MLA

Dreier, Katherine S. (Katherine Sophie), 1877-1952. [Bennington College. "4 Painters," 1936 Oct 15-Nov 9?]. 3 views of exhibition. Box 74, folder 1923. n.d.. https://collections.library.yale.edu/catalog/17047971.

APA, 6th edition

Dreier, Katherine S. (Katherine Sophie), 1877-1952. (["Box 74, folder 1923"])(n.d.)[[Bennington College. "4 Painters," 1936 Oct 15-Nov 9?]. 3 views of exhibition]. https://collections.library.yale.edu/catalog/17047971.