Cite

"The Reasons and the Aims of My Class Work," typescript mimeograph

MLA

Dreier, Katherine S. (Katherine Sophie), 1877-1952. "The Reasons and the Aims of My Class Work," typescript mimeograph. Box 57, folder 1565. n.d.. https://collections.library.yale.edu/catalog/16694450.

APA, 6th edition

Dreier, Katherine S. (Katherine Sophie), 1877-1952. (["Box 57, folder 1565"])(n.d.)["The Reasons and the Aims of My Class Work," typescript mimeograph]. https://collections.library.yale.edu/catalog/16694450.