MLA

Wharton, Edith, 1862-1937. Typescript. Box 9, folder 263. n.d.. https://collections.library.yale.edu/catalog/17111093.

APA, 6th edition

Wharton, Edith, 1862-1937. (["Box 9, folder 263"])(n.d.)[Typescript]. https://collections.library.yale.edu/catalog/17111093.