Baumeister, Willi
MLA
Dreier, Katherine S. (Katherine Sophie), 1877-1952. Baumeister, Willi. Box 95, folder 2398-2402. 1922-49, n.d.. https://collections.library.yale.edu/catalog/2015198.
APA, 6th edition
Dreier, Katherine S. (Katherine Sophie), 1877-1952. (["Box 95, folder 2398-2402"])(1922-49, n.d.)[Baumeister, Willi]. https://collections.library.yale.edu/catalog/2015198.