MLA

H. D. (Hilda Doolittle), 1886-1961. Third draft, typescript, carbon. Box 44, folder 1128. 1919. https://collections.library.yale.edu/catalog/10000461.

APA, 6th edition

H. D. (Hilda Doolittle), 1886-1961. (["Box 44, folder 1128"])(1919)[Third draft, typescript, carbon]. https://collections.library.yale.edu/catalog/10000461.