MLA

H. D. (Hilda Doolittle), 1886-1961. Corrections. Box 32, folder 849. n.d.. https://collections.library.yale.edu/catalog/17064220.

APA, 6th edition

H. D. (Hilda Doolittle), 1886-1961. (["Box 32, folder 849"])(n.d.)[Corrections]. https://collections.library.yale.edu/catalog/17064220.