MLA

Butts, Mary, 1890-1937. "On the American Wonder Child who translated Homer before she was ten years old," typescript. Box 6, folder 104. n.d.. https://collections.library.yale.edu/catalog/16586546.

APA, 6th edition

Butts, Mary, 1890-1937. (["Box 6, folder 104"])(n.d.)["On the American Wonder Child who translated Homer before she was ten years old," typescript]. https://collections.library.yale.edu/catalog/16586546.