MLA

Dreier, Katherine S. (Katherine Sophie), 1877-1952. Box 62, folders 1679-1680. Box 138, folder 3293. 1818 1952. https://collections.library.yale.edu/catalog/2014495.

APA, 6th edition

Dreier, Katherine S. (Katherine Sophie), 1877-1952. (["Box 138, folder 3293"])(1818 1952)[Box 62, folders 1679-1680]. https://collections.library.yale.edu/catalog/2014495.