MLA

Draper, Muriel, 1886-1952. Typescript I, Chapters I-XXIII. Box 18, folder 592-600. n.d.. https://collections.library.yale.edu/catalog/17126700.

APA, 6th edition

Draper, Muriel, 1886-1952. (["Box 18, folder 592-600"])(n.d.)[Typescript I, Chapters I-XXIII]. https://collections.library.yale.edu/catalog/17126700.