Cite

[Classes], holograph and typescript

MLA

Dreier, Katherine S. (Katherine Sophie), 1877-1952. [Classes], holograph and typescript. Box 51, folder 1461-1471. 1921-36. https://collections.library.yale.edu/catalog/11037538.

APA, 6th edition

Dreier, Katherine S. (Katherine Sophie), 1877-1952. (["Box 51, folder 1461-1471"])(1921-36)[[Classes], holograph and typescript]. https://collections.library.yale.edu/catalog/11037538.