MLA

Jordan, Viola Baxter, 1887-1973. Bryher. Box 1, folder 12-13. 1945. https://collections.library.yale.edu/catalog/2036399.

APA, 6th edition

Jordan, Viola Baxter, 1887-1973. (["Box 1, folder 12-13"])(1945)[Bryher]. https://collections.library.yale.edu/catalog/2036399.