Cite

Box 45, folder 1349

MLA

Dreier, Katherine S. (Katherine Sophie), 1877-1952. Box 45, folder 1349. Box 137, folder 3225. 1818 1952. https://collections.library.yale.edu/catalog/2014481.

APA, 6th edition

Dreier, Katherine S. (Katherine Sophie), 1877-1952. (["Box 137, folder 3225"])(1818 1952)[Box 45, folder 1349]. https://collections.library.yale.edu/catalog/2014481.