MLA

H. D. (Hilda Doolittle), 1886-1961. Photocopies of notes on the books in H.D.'s library. Box 59b, folder 1425a. 1915-60. https://collections.library.yale.edu/catalog/17064303.

APA, 6th edition

H. D. (Hilda Doolittle), 1886-1961. (["Box 59b, folder 1425a"])(1915-60)[Photocopies of notes on the books in H.D.'s library]. https://collections.library.yale.edu/catalog/17064303.