Cite

Simpson, Helen

MLA

Butts, Mary, 1890-1937. Simpson, Helen. Box 2, folder 39. 1935 Jan 10. https://collections.library.yale.edu/catalog/16947638.

APA, 6th edition

Butts, Mary, 1890-1937. (["Box 2, folder 39"])(1935 Jan 10)[Simpson, Helen]. https://collections.library.yale.edu/catalog/16947638.