Cite

"A Magical Experiment," typescript, corrected

MLA

Butts, Mary, 1890-1937. "A Magical Experiment," typescript, corrected. Box 7, folder 137. n.d.. https://collections.library.yale.edu/catalog/16586560.

APA, 6th edition

Butts, Mary, 1890-1937. (["Box 7, folder 137"])(n.d.)["A Magical Experiment," typescript, corrected]. https://collections.library.yale.edu/catalog/16586560.