MLA

Jordan, Viola Baxter, 1887-1973. Bryher. Box 1, folder 6-8. 1943. https://collections.library.yale.edu/catalog/2036351.

APA, 6th edition

Jordan, Viola Baxter, 1887-1973. (["Box 1, folder 6-8"])(1943)[Bryher]. https://collections.library.yale.edu/catalog/2036351.