MLA

Butts, Mary, 1890-1937. "Dream," typescript carbon. Box 5, folder 85. n.d.. https://collections.library.yale.edu/catalog/16586532.

APA, 6th edition

Butts, Mary, 1890-1937. (["Box 5, folder 85"])(n.d.)["Dream," typescript carbon]. https://collections.library.yale.edu/catalog/16586532.