Cite

Ernst, Max

MLA

Dreier, Katherine S. (Katherine Sophie), 1877-1952. Ernst, Max. Box 13, folder 349. 1920-26, n.d.. https://collections.library.yale.edu/catalog/2014485.

APA, 6th edition

Dreier, Katherine S. (Katherine Sophie), 1877-1952. (["Box 13, folder 349"])(1920-26, n.d.)[Ernst, Max]. https://collections.library.yale.edu/catalog/2014485.