MLA

O'Neill, Eugene, 1888-1953. Intermediate draft, typescript, corrected. Box 64, folder 1239-1240. n.d.. https://collections.library.yale.edu/catalog/2014167.

APA, 6th edition

O'Neill, Eugene, 1888-1953. (["Box 64, folder 1239-1240"])(n.d.)[Intermediate draft, typescript, corrected]. https://collections.library.yale.edu/catalog/2014167.