MLA

Jordan, Viola Baxter, 1887-1973. Century Magazine. Box 1, folder 20. n.d.. https://collections.library.yale.edu/catalog/2036834.

APA, 6th edition

Jordan, Viola Baxter, 1887-1973. (["Box 1, folder 20"])(n.d.)[Century Magazine]. https://collections.library.yale.edu/catalog/2036834.