MLA

H. D. (Hilda Doolittle), 1886-1961. Typescript. Box 34, folder 903. n.d.. https://collections.library.yale.edu/catalog/17064233.

APA, 6th edition

H. D. (Hilda Doolittle), 1886-1961. (["Box 34, folder 903"])(n.d.)[Typescript]. https://collections.library.yale.edu/catalog/17064233.